The Iodine Myth
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- čas přidán 11. 09. 2017
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In this video, I talk about the myth that surrounds iodine, which has to be one of the most widely spread misconceptions in chemistry. It is often taught in class and even appears in textbooks.
I try to explain why this myth came to be and I offer a potential solution. This video took me a really really long time to make, so I hope you guys like it!
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Nile talks about lab safety: • Chemistry is dangerous.
Music in credits (Walker by SORRYSINES): / walker - Věda a technologie
He sounds like he's written so many chem papers they've become the default format of his internal monologue
Hello
@@anapple1220 Hello, how are you today?
@@PneumaticFrog 🦊
But I enjoy hearing what he has to say. It's all very interesting, especially when I'm high
I wish he has written them. If not, maybe I should try and submit this video to my Biochem teacher when I was in college 7 years ago... for his 2nd or maybe 3rd book that he’s probably writing. His a good person who knows how to give credit where credit is due.
This is just like that math proposition for the Tao sign that was proposed in place of 2(pi) in most mathematics equation.
The concept of this reminds me of people who say, “alcohol doesn’t freeze.” Sure, doesn’t freeze in your consumer grade freezer, but it certainly can.
@Dcard Dcardian Then
The concept that only exist 3 States of matter
@@joroc yeah lol
Brilliantly explained!
All elements can be in all 4 matter states, just takes the right conditions.
I noticed this when we were taught this in chemistry at A level, the text said it doesn’t melt, we obviously fired a Bunsen burner at a huge amount in the time cupboard to make big purple clouds, and noticed the solid iodine melting and boiling. Always wondered why!
impressive, You didn't comment "*Lean Gas*" since this accursed Society where some purple drug is fabled and hyped, without tasting it
@@SherloDaDino but you did
@@SherloDaDino what?
@@SherloDaDino u are clearly a genius
@@SherloDaDino lean gas
I love the term nialation. It sounds similar to annihilation. "So, today we're doing a-nialation of iodine"
HOLY SHIT YES THIS IS GENIUS!
Just wait until the teacher says "Today we'll be finding out how in-nilation of iodine molecules turn into gas". And that one student understands "inhalation"
Leave the iodine alone
I can see 200 years from now, kids in class complaining that they have to watch an ancient educational video about Nilation.
For history
For history
For history
4 histories
History for
I love how it doesn’t really sound like he named it after himself. Nilation sounds like a real term
similar to "anihilation".
Like dilation
I feel like he should submit the term Nilation to a chemistry group or who ever creates these definitions so that way it becomes official because it’s a very useful term and it does make sense logically
Steve Mould got an effect officially named after him because of an old CZcams video of his, so why can't NileRed?
nihilism
My mother talks about visiting a relative in Canada in winter who hung out the washing outside to dry by nilation. When the wet washing was hung out it promptly became stiff as the water froze, when the washing was dry the clothes were flexible again.
Good example since the pressure of triple point of water is below 1atm.
I lived this. I once owned a house with a washer, but no dryer. You get mighty cold fingers hanging the laundry below zero, but they dry just as fast as a hot day.
I just started my very first college chemistry class and I’ve been watching your videos for fun even before I started that class. They are super helpful and make it easy to understand the idea
and my teacher really said h2o was the only thing that could be liquid, gas and solid.
That is probably one of the dumbest things i've heard a teacher say lool
Wtf?
In what class/grade?
shashank ambone first year secondary school
@@T0B well then it's understandable i guess, since going in depth about it won't be useful and may conduse the kids. I guess they could have put it better by saying 'Water is easily seen in all three phases in our day to day life compared to other things'.
"Despite it being incorrect, it's still often taught in schools, and sometimes even written in textbooks."
A phrase that I wish could be said less about many things.
I agree
True
You mean everything related to progressivism nowadays?
Lol I was thinking the same thing. People are going to be astounded when they look back on this period of history and realize that so many things they thought they knew were totally wrong. I guess that’s part of the human condition. The media is doing a terrific job of bastardizing medical science at the moment.
"teachers" and especially career academics are rarely challenged, and have massive egos. on the rare occasions they realize they are wrong, they quickly bury their mistakes with the diligence of a pencil pusher. the culture does not reward failures, despite existing as a result of focusing on them as a means oof improvement. Don't even get me started on the grifters that sell shitty textbooks....
Love your vids! It would've been cool to talk about what a triple point is for a moment. I love the triple point; it's just so weird that something can be all 3 things at once (or at least move through all 3 phases over and over all at once). Videos of it make me happy :)
I know this is an older video, but I just recently watched the aerogel video and the supercritical CO2 video, and I wonder if it would be easier, or just cooler, to see supercritical iodine, unless the pressure needed to make iodine supercritical is unreasonable or just too dangerous. If it’s doable for you and your lab, I would love to watch that video! Thank you!
I looked of a more detailed phase digram of iodine and it says for it to go super critical it has to be at 115 atmospheres and 546° C (1014.8° F) I dont think that would be very possible (at least without super expensive fancy stuff and even then idk)
@@ae_bae Yeah in order to do that safely you'd need a lab with a lot more funding than Nile's
@@ae_baejust put some iodine in your taco bell haha so funny haha taco bell makes me poo poo haha wow isn't this funny and definitely not overused or unoriginal hooha heeheehoo haha hoohee haha funny and not overdone
u can just heat it more, and use less pressure
@@ae_bae
I don't know jack flip about chemistry, but this is becoming one of my favorite channels of all time.
Jorge Díaz SAME
*same same same same same same same same same same same same same same same same same same same same*
If you understand most of what he’s saying then you know a lot more than you think. Give yourself some credit! At least you have an interest. 👍🏼
What saddens me is that humanity has gotten to the point where people don’t watch these videos to learn more or to follow along, they just watch it because it looks cool.
Stormtorch looking cool is the start to an interest. Nobody learns about the physics of rollercoasters and then proceeds to think think they’re cool, no they think they look cool and are fun to ride and in turn become interested in the physics of it. At least that’s how it worked for me
8:28 "Except this time, the Boiling point is Below the Melting point..."
My brain: *distant crackling of thunder*
My brain went to 900 ping when he said that
@@alexwhitton1 fool, my brain slowed down to 1400 ping
You all have brains? I don't :(
@@throwaway569 sad
@@throwaway569 I hope u are able to get one soon
Amazing channel... presentations, demonstrations, explanations, video design, logic applied, comprehensiveness...👍
Your dedication to education is immeasurably admirable and underrated
I love how the books where they say iodine doesn’t melt just state it but books that say iodine does melt actually give temperatures, data and examples
"Iodine doesn't melt at negative Infinity to positive Infinity" that's like saying this car can't move also it has a top speed of 0 miles per hour and 0 kilometers per hour it's completely unnecessary data that's why isn't shown
@@andrewmoore7022 exactly! You can't give data for something that doesn't exist. However, I do kinda agree with the original comment because they should've provided some other form of evidence, not necessarily numbers.
The easy way would be to say "iodine doesn't melt under standard atmospheric conditions", then go into detail about the conditions when it melts.
It's like saying "mercury is the only element that is liquid under normal atmospheric conditions" when gallium melts at around 29.75°C (85.55°F) which is not only below human body temperature but also below "standard" temperature in many climates. For somebody in Spain, gallium would naturally be liquid. Even potassium with a melting point of ~36.84°C (98.31°F) would be liquid on a hot summer day.
I would go even further and say "iodine prefers sublimation over melting under normal atmospheric conditions" to make sure to tell people that both can happen, but one ist just far more likely than the other.
YES
Well because the burden of proof is on the person who makes the claim
This is exactly something that proves that you're taught for the test and not for the knowledge
@unregisteredhypercam 12 It depends, actually
@@weefslider Could I ask you to elaborate? I do not know much about colors (nor did I know that the primary colors aren't red, yellow, blue) so I'd be very interested to know more! :0
@@officiallynerdygames7270 the primary colors _are_ Red Green and Blue, but that's not the whole truth; those are the primary _additive_ colors, while Magenta, Yellow and Cyan are the primary _subtractive_ colors.
This means that if you are working with an additive medium, where the wavelength of the colors are _added_ together (99.9% of the time this just means "light") then yes, RGB are the primary colors you want: you can mix additions of those 3 to each other to create every color; but if you are working with a medium where each color subtracts how much light is being given off (again, 99.9% of the time this just means "paint") you'd need CMYK ("K" standing in for Black).
This happens because paint and light are literal opposites in the way they form colors; light gives off color, whereas paint _absorbs_ most colors, and only reflects the color we presume they "give out"; so, in fact, a "Blue Paint" is technically more of a "Not-red Not-green" paint; if you tried to take an RGB value for something like purple (150 red, 50 green, 200 blue) and tried to mix _paints_ with the same proportions, "3 parts red paint, 1 part green paint, 4 parts blue paint", you wouldn't get purple; you'd get a blue-ish dark brown color.
As for why Cyan, Magenta and Yellow (plus Black, hanging out in the corner) are the primary subtractive colors, well, to put it simply, they are the result of subtracting the 3 primary additive colors from White; if you take away the Red from White, you have Cyan; take away the Blue, it becomes Yellow, so forth; this makes mixing subtractive colors much easier with these 3 building blocks.
It might be fine to just teach kids RGB, but I have to say: as a child I absolutely _hated_ this; I _thought_ I had learned the primary colors, and I couldn't, for the life of me, understand why only a few of the paint mixes I made worked; using RGB you can barely get to the secondary colors before everything just turns brown, and it's really frustrating. When I eventually learned that I hadn't even been using the correct basic blocks it all made so much more sense; what makes me actually angry about this is that fkn paint companies here in Brazil actually _do_ sell "paint kids for children" that come with just RGB White and Black as colors, such a dick move.
@@mordirit8727 Oh! That's super duper interesting and makes a lot of sense (I was doing some painting a while ago and was really struggling to make some colors). Thank you for explaining it, that is really interesting!! ^^
@@mordirit8727 Fun fact: There is no cyan or magenta wavelength unlike RGB they are kind of anti-colors your brain forms in abscence of certain wavelengths
I live in the southwesrern desert. On rare occasions we get snow/ice built up on the hood and windshield, here the winter is very dry and it's below freezing and we are traveling at speed on the hiway, the ice/snow does not melt but will sublimate from the vehicle. It's very cool to watch.
Myths like these strangely seem to come up in a lot of professions. Its kind of like how in my field (electrical/electronics engineering), its still pretty common to hear someone saying "Its not the voltage that kills you, its the amps". Very common misconception, when volts are required to to push the amps through you.
Ahhh yess, and then comes human stubbornness and pride to change what is wrong to what is right and just call the newer or alternative correct information as either wrong, unsupported by mainstream, or pseudo.
**unironically uses the term Nilation from now on because its a good idea to have a specific word, and plenty of scientific terms are named after individual people anyways**
Considering how close Nilation is to Nihilism its a pretty good term. It's basically a solid wasting away, so it fits the term
@@codec862 Ah, my daily dose of existential crisis
@@codec862 ahahahahahahahaha
I'm not sure the term pulls its conceptual weight tbh.
If we all use it enough it’ll become a generic term
You should totally write a paper on this and submit it to academia. Their is literally no reason why you couldn't get nilation into the books.
Yo tengo una, otro nombre mas sin sentido asociado al azar. Si todos los elementos químicos hubiesen sido nombrados en honor de alguien, hubiese perdido el interés rápidamente. Con todo respeto por el canal y los ilustres hombres que han dado nombre a sus ideas y descubrimientos.
@@arianelcole ?
Shlomo Goldsteinmenbergvitz that literally doesn’t mean anything lol, my mother language is Spanish and I make mistakes like that all the time
@@kokomisorbet you have my respect
(No, really, with all the respect)
@@kokomisorbet Technically, North America is a continent ;P
Best Explanation of Sublimation and evaporation; Wish we had a chemist professor like you.
Damn you're good at explaining, this is very well done! Thanks for uploading!
Nile: “so as you can see that this proves the myth wrong and iodine can melt”
Me: “OOOooh pretty purple vapor”
Yes yes it is...
one day he’s finally gonna snap and you know the rest
@@kitkong5075 crazy? i was crazy once. they put me in a room, an enclosed room full of iodine, the iodine made me crazy. crazy? i was crazy once.
Me, trying to study for a math test: “focus.”
Also me, five minutes after I promised to focus:
“Metal make purpl smork”
I got physics cri
purpl smork look like glitter heir
It's not a metal.
ThaFuzzwood first off, alright, my bad, I didn’t know that. Second of all, it... is a joke.
Welding homework here lol
“Let me know if you think of something better” BROOOO you’re a genius that term is immaculate!!!!
Being as you introduced the problem and solution to the public I believe you deserve your own term
I like the idea for a new word for sublimation without a distinct phase change! However catchy "nilation" may be, might I suggest an alternative? Both sublimation and evaporation are derived from Latin route words - sublimare meaning "to raise to a higher level" and evaporare meaning "to vaporize". I propose sticking to the Latin theme and using effugere meaning "to escape". Effugation would be the process of molecular escape.
Douglas Manofsky in vino veritas! 😉
Coooooool
Stop trying to make up your own words
@@gerarddunne956 ohhhhh then what should he do idiot.............. He is trying to do something good.... By making science make some sense but you my friend will oppose him.......
@@MarkyIsNow I'm not opposing him,im opposing you....Stop trying to act all smart by making up your own words that sound terrible(well I was actually blaming the person that wrote this comment but still)
"Nile, what'd you do to the block of iodine I had in the fridge?"
"Oh sorry, I 'nihilated that"
Lol
"I, er.. nilhilated it."
"You annihilated it?!"
"No thats not what I mean--"
"Thats what she said"
Whata bout vaporization?
I'm starting to use nilation from now on, it is one of my biggest gripe when talking about phase transitions!
Team Nilation Right Here!
I like your term for the process. You confronted the problem and established a solution, so I say you get the right to name it too.
Most people’s brains: I’m gonna say this to my science teacher
My brain: it says “triple PLOINT” (7:55)
ploint, i believe THAT ...
i like your brain :)
Deadass that made my day, got me cackling
I did not notice this before. Thanks for pointing it out.
@@daves_secret_chord PLOINT-ing it out
lol
@@UnboxMaster it's not a real word. it's an urban.
You should write this up as a paper and submit it to some journals.
You never know, Nilation might catch on.
you have my vote.
i loved these phase charts in college. it was like learning secrets. changed the way i think about celestial bodies
the moon is liquid phase while it moves through the constellation casseopia
Great video!
I've noticed this as a bit of a trend. When the content is taught in chemistry class but is actually physics, then the textbooks are even more often wrong than usual.
- using static electricity to bend a stream of water "proving" it's polar (it's a flawed experiment).
- anything quantum.
That and my pet peeve of some chemistry teachers claiming ph is a scale between 0 and 14 cause they don't understand logarithms.
I genuinely hope that nilation becomes a common term for chemistry because it would seriously help clear things up. Not to mention it would be an amazing opportunity for this channel.
It sounds like “annihilation” which makes it sound actually legit
lol you never thought about this before
@@janmelantu7490 Annihilation already means something else though (matter + antimatter reactions, sometimes also used for particles which are their own antiparticles such as Higgses or hypothetical dark matter particles), so a term that sounds so close is probably a bad idea. I don't see any good reason to distinguish this "nilation" from evaporation anyway.
@Panel Deepak At its core, chemistry is "just" applied physics, but more importantly. there's tons of overlap. Both fields are interested in phase transitions, for example. The bigger problem with a term like "nilation" is that it doesn't pull its conceptual weight: what's happening is escape of thermal fast particles from the material, and it doesn't really matter what phase the material is, the physics is the same.
@Panel Deepak " Chemistry rarely involves matter and antimatter let alone matter antimatter reactions."
Beta decay.
Wonderfully edited and informative. Excellent composition and logical structure. I really like this video :)
thanks man. I really appreciate it.
They're both Canadians, their initials are the same...
Has anyone ever seen Nile Red and NurdRage in the same room?
I am now shipping NileRage
Or maybe Top 10 AnimeBattles? (NurdRage x NileRed)
NileRed I want to correct you, Mr Nile.
You did not cover the subject of material topology that also covers the elusive topic about how should we structure in different categories the transitions that occur between the different states of matter.
NileRed On the first level, we must define 3 pairs of transitions between the first three states of matter. I say "first three" because there are more states and sub-states of matter (plasma that can be cold, warm and hot ; supersolids ; Boise-Einstein condensates ; neutron matter ; quark matter ; superfluids ; ideal and non-ideal gasses ; hypersolids ; superviscous fluids like pitch and tar sand ; hyperviscous fluids like glass and other amorph materials ; you got the ideea...)
A catalyst could also be added the lower the amount of energy needed for the reaction leading to more molecules having enough energy the switch phases
This is the first video on your main channel that got recommended to me previously only your shorts channel got recommended to me
NileRed is my top faceless scientist
Nurdrage
Faceless?
Not any more. I pictured him as older than he appears to be. Very smart guy.
Unfortunately Nile has a face
@@noti7510 "Unfortunately"
Great video! There really should be a word for solid evaporation, and nilation sounds great. Thanks!
Hey man, glad you liked it!
NileRed, Applied Science, did not expect that one watch another. What's about collaboration video?
It also works with Wikipedia's version of "nihilate" where it defines the Latin meaning as "I reduce to nothing" and the English meaning as "to encase in a shell of non-being."
It technically works with the idea of nihilism, so I think it'd work perfectly.
A new word for solid evaporation with unintentional Latin roots!
I agree. It implies nihilism which is somewhat the opposite of the classical definition of sublime.
Isn't solid evaporation sublimation?
You always make my day.
3:38 very satisfying watching the vapor pour out before the liquid
Nilation. I say it's a go. Clearly filling a gap in language to more accurately describe a real phenomenon is always a good move in my opinion. Congrats.
when I saw the title, I thought it said "The Iodine Meth" and I was like yes! he's finally admitting he has a meth lab
e
This is the moment when NileRed became Heisenberg
Yeah I thought it said Iodine meth as well.
F
I could see Nile and Michael reeves sharing one.
There should be a word for the phase transition from solid to gas according to the boundary conditions of temperature and pressure- especially in the discourse of latent heat values. Nilation sounds too similar to annihilation, which means something else, entirely.
I genuinely love how there are the name number of subscribers as there are views in this video, 4.09 million subs and 4.09 million views
I love this man if he was my teacher I would stay in contact with him after high school instead of forgetting about him.
Mr. Red
Teacher: Iodine doesn't melt.
Me:I'm gonna end this man's whole career.
end them rightly
For NileRed
I’m gonna melt this man’s whole career
DUDE I JUST DID THAT IN CLASS TODAY
I sent this to my chemistry teacher just cause
Cool. Learn something new every day! Thanks.
When I was in school my teacher told me that when the snow is warmed by the sun, more of the snow nilates than melts. If it all melted there would be way more water on the ground and more mud to deal with. I've always wondered if that was true and I don't really know how to differentiate between snow that nilates and snow that melts and then evaporates.
Man that thumbnail looks like it has that aura that gets used whenever a character cooks a horrendous meal.
Yes, Shion from Slime in particular must use a lot of iodine in her cooking.
@@Merennulli i wonder if she would shoot iodine at whoever disliked her food
@@NoOne-qi4tb She usually just threateningly squeezes or stretches Rimuru while glaring at whoever does.
@@Merennulli yrs but what after?
@@Merennulli it left us on a cliffhanger but what happened when rimuru just reversed the whole "keep your reason" or something
Chemists: Noooo! You can't melt Iodine!
NileRed: Haha, Iodine go splash.
Hello there!
Diane Adams// you copied this from Lysandish!
@@thebaseelanthebasavagam220 "YoU'rE a PhOnY! a BiG fAt PhOnY!!"
wow internet comment joke go the same
Hahahahahaha
@nilered I find myself re-watching all your old videos because they are incredibly informative. I would love to see more. I know for profit, you need to follow the trend with shorts, but it would really be nice to see these again.
I dare NileRed to make a “Science experiments for kids!” Video. I want to see.
when this whole pandemic is over, imma prove my teacher wrong
you go man!!!
Go destroy them
Just show the video lol
Nah he needs to show it himself infront of the whole class
That's total humiliation
For extra credit on my chemistry exam, I had students watch your video and then pick the point on a phase diagram where a solid would nilate. I enjoy your videos a lot. Keep having fun in the lab and we'll keep watching.
I was bad at chemistry, my native language is not english and somehow I understand most of your videos with no issue. This videos are amazing.
I remember learning about the phase diagram 2 years back during the physics, and back then, I thought that it is cool, but useless. And I also didnt know, why something evaporates, but something sublimates. And now, you've had opened my mind , so thanks to your help, I kinda understood it on my own. Also, when I think about that, the sublimation occurs under the triple point, so maybe thats why its called SUBlimation lol
Superlimation, then?
Suplimation😮
Sublimation: below triple point
Superlimation: above triple point
PERFECT
What a superblime suggestion
@@agentstache135 *superlime
do u mix up inhale and exhale? This is the same concept
The triple point should be called the limation threshold
Finally someone... Thank you very much for this video. Now I can just reference people to this and I don't have to argue with them.
But does it stay in a liquid state for long at all or does it just evaporate?
I can understand why they would say that it doesn't melt since it is never really able to be used as liquid in a practical sense so they leave that information out to avoid confusion.
Although it is important to understand exactly what is going on and I really appreciate this video because it informed me about chemistry in a way a complete laymen can understand.
Any liquid’s rate of evaporation depends on these factors at the very least:
* amount of liquid
* amount of exposed surface area of liquid
* ambient pressure
* ambient temperature
We need petitions! Nilation is an awesome term. (Sounds like annihilation, sometimes depicted as the vaporization of a solid form)
I feel sheepish at least a dozen times a day when I have to use the word sublimation, as one does, and the person I'm talking to gets confused. I can't wait to bust out the word nilation when I'm having one of my extremely frequent conversations about advanced chemistry while talking to my coworkers at Domino's Pizza. Cheers.
I was thinking this was a gonna be a humble brag until the end haha
i was thinking of dominos while reading this and holy shit is that a coincidence or did my brain read the last sentence subconsciously and made me think it
@@pvc1380 most likely the latter
Wow you're so smart how dare people not know stuff they're not interested in lol
@@skeletoninyourbody9896 I cannot tell whether you're joking lol
I got detention for correcting my teacher when she told us that iodine doesn’t melt :(
Paulyn Navales sue
Did you tell her about nileation
I dont think anyone should be punished for challenging the understanding/beliefs of their teacher. If their teacher fully understands a topic they should be able to explain/correct that. If anything, allowing you to try to prove your point would be a better way to do things @_@
Asshole teachers in a nutshell. Should take their anger somewhere else before somebody "accidentally" throws concentrated sulfuric acid in her face.
@@luisp.3788 it went from 0 to 100 real quick, chill down there cowboy.
A good counterpart to this would be a video of water ice sublimating in a vacuum chamber.
Look up the term Thagomizer for what an example of what you want basically happening. It refers to the tail spikes on Stegosaurs (and similar dinosaurs) and has seen academic use. It was coined in a Far Side comic where a caveman is giving a presentation.
“Nilation” sounds like “annihilation”
reminds me of the movie
oh more like Nihilism, the belief that nothing is right about Iodine sublimation!
r/yourjokebutbetter
Mk. 5 r/woosh
@@yazmin1522 r/itswooooshwith4os
my chemistry teacher once did the "experiment" you did in the beginning. well, the glass exploded (probably due to the heat) and we had purple vapor all over the classroom.
Bob Lyle yes, especially if teacher doesn't think about opening the windows
soundspark well, I think you need a working fume hood to do that....
soundspark No Money in German classrooms For a fume hood
@Lost Places FPV than not such experiments, its pretty strict regulated. fume hoods and full room fume extractors are standard since ~ 30 years.
Help I dont want to know what happened to the people who breathed the Iodine.
I never knew about this myth. My parents purchased iodine solution for use as an antiseptic; I figured that it had to be rendered liquid before becoming part of a solution. Also, having been fascinated with chemistry as a kid, I figured that any pure sample of a relatively simple substance could be rendered solid, liquid or gaseous with sufficient control of heat and pressure; learning about phase diagrams was a delightful affirmation of my earlier figuring.
well nope, if you think about it even salt dropped into water is a solution and that one definitely doesn't have to be moltne into a liquid to dissolve in the water and make up a solution
I think the reason the process of going to gas from liquid got two different names, and from solid didn't, is that in the liquid case they are so visually different. Once the vapor pressure exceeds the ambient pressure the vapor is able to push the surroundings asside and form bubbles inside the liquid. Because of a solid's cohesion this doesn't happen with sublimation, so it looks identical to nilation.
Of course the difference is still real. A thin layer of saran wrap will mostly stop loss of the material from nilation, but not from sublimation.
Nile: "Look, a phase diagram"
Chemistry textbooks: 😑 "I pretend I do not see it"
He did take the phase diagram out of a textbook tho
I’m actually okay with using evaporation for solids and liquids, since in both cases, it’s the random escape of particles into the gas phase not linked to a real phase change. Although the starting phase can be different the physical process is the same, while boiling and sublimation are definitely different since different intermolecular forces are being broken.
But that's wrong. The New Oxford Dictionary for Scientific Writers states evaporation is "The change of state of a liquid into a vapour at a temperature below the boiling point of the liquid." Almost all the other sources I checked agree, and state it is specifically the change from liquid to gas. The only one that didn't was Merriam-Webster, which said it is the change to a gas without referring to its original state.
"...not linked to a real phase change." Um, no. It is very much a real phase change, and there's nothing random about it. It has definite causes and you can change the rate at which it occurs, for example by putting it in a vacuum chamber.
"..boiling and sublimation are definitely different since different intermolecular forces are being broken". No, they're the same forces, they're just being overcome for different reasons.
So evaporation is a liquid turning into a gas, and sublimation is a solid turning into a gas, both of which are caused by differences in concentration of the substance (vapor pressure?), while boiling and freezing are phase changes caused by a change of heat energy.
@@kilroy2517 Good to see Kilroy was here. I think I'll be your gadfly for the evening though. In a hot cup of tea, there are molecules at many temperatures. Those temperatures average out to something nice, but individual molecules may be near absolute zero and some are much hotter than water's boiling point, say thousands of Kelvin. The same is true of a lump of brass or anything at any temperature. The hot molecules can and sometimes do fly off. The only difference material phase, temperature, pressure, or strength of intermolecular forces make is how many molecules fly away. Elvis left the building because he met and encountered all the conditions to do so even if the audience is sleeping it off or running after him for a sweat rag.
Looked at that way, evaporation, sublimation, and nilation are all the same thing--Elvis leaving the building. If you are more interested in questions like: will it leave a mess, how long will my lump of stuff remain here, will the meltwater refreeze on the sidewalk tonight, or what does the test want for an answer, the distinction matters.
As for dictionary definitions, there is a reason philosophy books dedicate several chapters to refining and redefining the key words they'll use.
@@karlharvymarx2650 Thank you for your well-thought out and written comment. A pleasant change of pace on YT. I don't disagree with anything you said, except your assertion that their may be a huge difference in energy states in that cup of tea - the range of temperatures for the vast majority of the molecules will be much, much narrower than you say, but I understand you did it for illustrative purposes. In effect, sublimation and evaporation are the same thing, but they're different words with different meanings, and I took the time to research it to make sure I wasn't just offering my opinion. A woman may give birth the old fashioned way, or she may get a C-section, and in effect they're both the same thing in that a new baby has been born, but they're really not the same thing, are they? I have no problem with Kyoobur looking at the ice tray in his freezer and thinking, "Hmm, the ice cubes have evaporated", because knowing that the ice has actually sublimated will not make his life any better, but when he tells others that that's correct, that's where I stepped in.
Solids sublimate, they don’t evaporate.
I agree with this. It is similar to how fluid dynamics uses many of the same language when dealing with liquids and gases, calling them both "fluids" for instance.
can you test the dont mix cough syrup with iodine and lye recipe?
Nialation may or may not be a good word choice as annihilation means destruction.
Sublimation occurs when no external forces exceed the melting point of a solid.
This channel reminds me why I loved Chemistry in high school
Its already nilation to me.
Inotamira Orani he'll get it as soon as he drone bombs civilians (Obama won a Nobel Peace Prize despite increasing the US usage of drones to execute attacks on metadata targets resulting in an increase in civilian deaths in the "War on Terror")
The Nobel Prize for Peace management doesn't work the same way as the others. The Peace prize is just political
Get out of here you trash dog.
Cermet it's*
AceZX57 Official lmao is there anything on your mind you want to talk about?
Anyway my chemistry sir taught me the right thing . He said that every substance can be converted to any states . Just want to increase or decrease it's threshold energy . But I have a question , does this work in carbon or in its allotrope graphite . I need an answer Nile Red , Blue , Yellow , Purple , Green 😁 ( Yellow and Purple is there in the multiverse ) .
question, you said the beakers are a enclosed space witht he glass disc on top, but doesnt the little outcut on the beaker make it non-enclosed?
Looks at title:
The Iodine Meth
Looks again:
The Iodine Myth
I had to watch just because I know it turns into a liquid..... Hahaha
Is it the same iodine they use to cook? Red and black .. Killers on the loose...
Nah man he made lean
Even Tungsten has a vapor pressure at room temperature.
Although even a single atom vaporizing off in this manner has probably never occurred, seeing as it's around 10^-140 Pascals, which makes even tiny amounts of room temperature tungsten more stable in a vacuum than supermassive black holes.
Dats a lotta zeros
TIL Tungsten is pretty dope.
@@Gabriel-yd4bq yep
I am somehow hard pressed to believe that regular ass matter is more stable than a literal gravitational singularity.
Sure you can say 'but what about Hawking Radiation', but then I can counter with what about black body radiation.
You dont have vapour pressures for phenomaena with an escape velocity above c.
@@ineednochannelyoutube5384 I was skeptical at first too, but then I calculated the Hawking radiation pressure for a 5 mega-solar mass black hole and it turned out to be 10^-70 or so. You're right that Hawking radiation is analogous to black body radiation, but the difference is, Hawking radiation will actually evaporate the entire black hole away, whereas black body radiation will not. Imagine a situation where black hole and lump of metal are each isolated in their own universe, with nothing else -- no matter, no radiation, nothing. In that situation the black hole will begin to evaporate, but the tungsten block will cool down radiatively until its black body radiation is less intense than the Hawking radiation, too.
There's two key physical principles here. One is that the stuff the lump of metal is made of -- protons, neutrons, electrons and the like -- are at least approximately conserved (if they do decay, it's much less important than anything else in the problem). In contrast, the black hole is happy to evaporate emitting only photons, and will do so for a long time. The second reason is that black holes have negative heat capacity, so as they radiate away heat they get _hotter,_ not colder. This means that Hawking radiation only ever becomes more intense, eventually becoming hot enough to even produce massive particles, whereas black body radiation slows to a trickle and stops.
So there is a sense in which the claim in the OP is correct and meaningful.
Your new word sounds sublime!
The does not melt etc should always be combined with standard temperature and pressure.
I screwed up when I was a teenager. I took some iodine from the chem lab. I heated it up on aluminum. I didn't realize it was going to release so much red smoke. My entire kitchen went from yellow to a pinkish color. My hands were red and I had breathed the gas. I was so scared because I didn't know if this stuff was poisonous.
Why did you do that??
@@khatunamezvrishvili6211 I saw the release of red smoke in chem class and I thought it was amazing. This was before CZcams existed. So I figured I would recreate this at home. Lolololol.... Bad idea. I had to scrub my hands and the walls. My mother was pissed off to see all the walls redden by this stuff.
@@Shedding lmao
@@Shedding Did you die?
@@leechyfruit4464 no man.. still very much alive. Good thing iodine isn't particularly poisonous.
I am gonna spread the term "nilation" through out my uni.. Let's hope it catches on real quick and gets into common usage.. lol
Thanks!!
While nilation is a great word, I think I prefer *Superation.*
Because *Sub* -limation occurs *below* the triple point.
Wheras *Super* -ation occurs *above* the triple point.
more like OVERLIMATION
like Subway and Overway
Super suggests "more of" rather than above
My issue with that is that It sounds too similar to saturation, which is a problem because saturation is commonly used in theromdynamics. I don't know of any words in thermodynamics that are similar to nilation.
KeepCalmAndJazzOn How about supramation?
Liquid is such an interesting sate of matter, in that it typically exits as a bubble in phase diagrams. Liquids are sort of an anomaly because they require very specific conditions, but it seems very presumptive to state that something can't have a liquid state simply because it sublimates. You can get just about anything to sublimate under the correct pressure and temperature conditions. How do people publish junk like that?
Have you done the same experiment with 100% dried Irodine???
Plus not using a water filled stop?
Where condensation can form??? 🤔🤔🤔🤔👊
I really love watching these videos alongside my school taught chemistry, it’s really satisfying to rewatch a video that I didn’t understand previously and find that I understand much more of it now.
It's also fun to see how even in a specialized field like this there are actually misconceptions and possibly missing terms but they are just carried on over time as most people dont care enough to define a new term for it
There's "volatilization" for solid->gas. Ref.: Treatise on Solid State Chemistry, 1976 pp 165-240. But this word has two meanings too.
just change a little bit to “volatisation” and “devolatisation”, it should be good enough
I'm bad with chemistry so maybe not right about this but isn't pressure a big piece of this? In a higher pressure than 1 atmosphere it would transition to liquid first right?
Oh, then I finished the video and saw you explaining phase diagrams that I was thinking of.
All elements have melting points no matter what right? Even if it’s a gas right? Even if it naturally sublimes right? Right?
This channel has taught me more about chemistry than all of the chemistry classes I’ve taken combined
That's amazing. As someone else said, I love this channel's content. I can't get enough. Keep doing the good work, you're educating millions. I appreciate your work. One of my all time favorites.
thanks, squarespace!!!
Is there a substance or compound that can stay liquid at 0atm pressure?
It seems to me most if not all are gas, yet there are compounds that stay solid too like an asteroid in space.
The alchemists called the process of the solid to gaseous phase, "exaltation". I see this on my windshield when ice directly evaporates. So there is temperature and pressure, but also humidity at play.
Interesting video. Thank you for clarifying sublimation.
👍
Not sure, but i think I see that quite often when getting stuff out of the freezer. "vapor" that is falling down.
humidity actually affects pressure of the air, so its still technically just temperature and pressure
Iodine is the true
「Ｐｕｒｐｌｅ Ｈａｚｅ」
JOJO?!!!
*OH NO*
Fugo
@@gachatumor8054 its a song by jimi hendrix but 👍🏻😿
Don't talk of that COWARD
So if I understand in boiling, gas pockets can form within the liquid, not just at the surface. But in sublimation can gas pockets form within the solid?
Nilation sounds perfect, because all I could visualize is my bins evaporating and the word sounds like annihilation so it sounds perfect