Calculate Rate of Formation of Compound in Isothermal PFR Feed


The following set of gas-phase reactions is expected to occur in an isothermal PFR fed a mixture of compounds A and B.

1.    A + B → 2C
2.    2C → A + B
3.    A + B → D
4.    A + C → E
5.    D + E → F + G
6.    3C + F → H + C
7.    G + ½ C → I + J

What is the net rate of formation of C?

a) rC = 2r1 + r6
b) rC = r1 – r2 – r4 – r6 – r7
c) rC = 2r1 –2r2 – r4 – 2r6 – ½r7
d) rC = 2r1 –2r2 – r4 – 3r6 – ½r7
e) rC = kCC
f) rC = ½r1 – ½r2 – r4 –1/3r6 + 2r7



The short answer question belongs to Chemical Engineering and the question is about gas phase reactions expected to occur in isothermal PFR fed into a mixture of two compounds.


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