Question

The flow in rate of A and B are 4 mole/s and 8 mole/s respectively, which under goes reaction A + B -> 3C, what is the flow out rate of C?

(a) 4 mole/s

(b) 8 mole/s

(c) 12 mole/s

(d) 24 mole/s

This question was addressed to me in quiz.

Question is taken from Open and Closed Systems topic in portion Introduction to Material Balances of Basic Chemical Engineering

Answer 1

Right answer is (c) 12 mole/s

The explanation is: Rate of C = 4*3 = 12 mole/s.