15) Reaction Engineering, How to solve volumes and conversions of PFR and CSTR

In this video, I solve problem 2-7 from Elements of Chemical Reaction Engineering, Fogler, 4th ed.
2-7) The exothermic reaction A - B + C was carried out adiabatically and the following data recorded:
X | -r_A (mol/(dm^3*min)
--------------------------------------------------
0 | 1.0
0.2 | 1.67
0.4 | 5.0
0.45 | 5.0
0.5 | 5.0
0.6 | 5.0
0.8 | 1.25
0.9 | 0.9
The entering molar flow rate of A was 300 mol/min.
a) What are the PFR and CSTR volumes necessary to acheive 40% conversion? (V_PFR = 72 dm^3, V_CSTR = 24 dm^3)
b) Over what range of conversions would the CSTR and PFR reactor volumes be identical?
c) What is the maximum conversion that can be achieved in a 105-dm^3 CSTR?
d) What conversion can be achieved if a 72-dm^3 PFR is followed in series by a 24-dm^3 CSTR?
e) What conversion can be achieved if a 24-dm^3 CSTR is followed in a series by a 72-dm^3 PFR?
f) Plot the conversion and rate of reaction as a function of PFR reactor volume up to a volume of 100-dm^3.

[@JamesVestal-en3gu]

Big peter would call the CSTR and PFR two big animals! But we think solving these big animals will be on the second midterm!

[@iaadarshaw]

You aren't teaching , you are just telling answers !

[@Nicko100ful]

Thank you. I'm from Ecuador . I study Chemical Engineering . I have a test soon. Your videos really help me

[@railitaylor]

You're welcome! I'm glad they are helpful!

[@safiahameed1536]

They're helpful 🎉❤

[@MM-kz2zd]

Thank you :)

[@jellycat4244]

can you please explain how you got the conversions in part d and e of the

[@safiahameed1536]

How are u calculating the conversions with trial and error thing can u elaborate me? Im.not getting it

[@r.atravelvlogs]

Hi. Mam can you solve problem 2.4 and 2.5 from the same book. And please elaborate how we van easily find conversion values. I don't understand trial and error. Please elaborate it.

[@manikantkumar81]

post the solution of problem 2-5