Hydrogen Fuel Cell Explained - GCSE Chemistry | kayscience.com

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Hydrogen Fuel Cells Explained - GCSE Chemistry | kayscience.com
Hydrogen fuel cells produce electricity by reacting hydrogen and oxygen in a fuel cell. The electrodes are made of graphite. Hydrogen gas is supplied to the negative electrode and oxygen gas is supplied to the positive electrode. The electrolyte is alkaline e.g. potassium hydroxide solution which contains dissolved OH- ions. The hydrogen gas diffuses through the graphite electrode and reacts with OH- ions forming water, supplying electrons to the circuit. The oxygen gas diffuses through the graphite electrode, reacting with the hydrogen ions to form hydroxide ions.
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[@shivamsingh7389]

on my word... i did not think this guy had less than 10K subscribers when i saw the video initially. this video was super simple, informative and concise, the explanation was to the point, and anyone who skipped through those questions in the middle seriously missed out on the opportunity to retain the information. well done, my man. btw i have watched like 10s of different studying channels and many of them are amazing, but for this particular topic, this video was one of the best, seriously.

[@KayScience]

i cant believe we're below 10k subs either! tell your friends

[@EsotericMedic]

Thank you very much! I'm doing A-level chem and couldn't understand any A-level explanations for the topic, but you made it seem so easy!

[@dslacie25]

oh my god thank you so much. i could never understand how hydroxide ions react with hydrogen gas at the negative electrode, but your concise and adept diagrams are truly a godsend

[@KayScience]

amazing to hear the video helped you :)

[@charleyheasley9371]

Monkey

[@charleyheasley9371]

@dslacie25 hello, how did you exam go

[@yvonnecui409]

I've been looking through several videos and this is the first one providing clear explanation of how alkaline fuel cell works. It answers my question of how the water produced in anode suddenly appears in the cathode.

[@KayScience]

Thank you for letting us know this and I hope you do well in your chem exam on Monday! Good luck!

[@humbleRaj]

Excellent

[@KayScience]

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[@user-cn8fi4tv8j]

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[@fardinshahriwar3978]

Exam knocking at the door! keeping the door shut, Completing the syllabus! Thanks for the help!

[@jessaleehundermark9825]

This video was so good! Simple, easy to understand and the questions really helped me remember the info. Thanks bro, keep doing what you do!

[@KayScience]

Glad it helped!

[@andrewt580]

So glad I found your channel, thanks!

[@nadaalaamohamedshafikzalat9265]

Thank you , that is the best video explaining this topic😊

[@KayScience]

ooooo thank you! :)

[@hollowknightshade4208]

Thank you so much for this video

[@parvdadhe7444]

Got every thing . Brilliantly Explained .

[@Ykotb08]

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[@KayScience]

Thank you! Check out kayscience.com for 1000s of FREE quiz questions - hope you enjoy! You also have access to all our videos here 😊

[@tisveenakhan]

i understood very well, thank you

[@KayScience]

thank you :)
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[@tarandeepkaur683]

Hi, how does the reaction of hydrogen and hydroxide ions release electrons?

[@zhuojinwoo786]

Can you please tell me what is the OHR and RHR of the hydrogen fuel cell?

[@gelilaasefa2773]

Thank you so much👍👍👍👍

[@KayScience]

you are very welcome :)
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[@rosealyssa6071]

This is for a basic fuel cell right?

[@isheanesuchasekwa539]

Hi what if it is in an acidic electrolyte

[@KayScience]

PHOSPHORIC ACID FUEL CELLS
Phosphoric acid fuel cells use a phosphoric acid electrolyte that conducts protons held inside a porous matrix, and operate at about 200°C. They are typically used in modules of 400 kW or greater and are being used for stationary power production in hotels, hospitals, grocery stores, and office buildings, where waste heat can also be used. Phosphoric acid can also be immobilized in polymer membranes, and fuel cells using these membranes are of interest for a variety of stationary power applications.

[@dimahalazzawi3452]

so is this the same as the textbook right? like the same info anf following the same syllubus

[@user-cn8fi4tv8j]

❤❤❤❤❤

[@Regretheals1427]

How about potassium where It goes