Question

In a steady-state reactive system, 5 molar CH4 and 5 molar O2 are supplied to the system, then what is the amount of CO2 produced?

(a) 2.5 molar

(b) 5 molar

(c) 7.5 molar

(d) 10 molar

I have been asked this question during an online interview.

I'm obligated to ask this question of Accounting for Chemical Reactions in Material Balances in chapter Introduction to Material Balances of Basic Chemical Engineering

Answer 1

The correct answer is (b) 5 molar

Explanation: The balanced chemical reaction of the system is CH4 + O2 -> CO2 + 2H2O, => amount of CO2 = 5 molar.