Question

CH4 at the rate 10 mole/min is reacted with O2 at the rate 10 mole/min, what is the rate of formation of CO2 in the product?

(a) 5 mole/min

(b) 10 mole/min

(c) 20 mole/min

(d) 40 mole/min

This question was posed to me during an online interview.

Question is from Problem Solving Strategy topic in chapter A General Strategy for Solving Material Balance Problems and Solving Material Balance Problems for Single Units of Basic Chemical Engineering

Answer 1

Right option is (a) 5 mole/min

To explain: The balanced chemical reaction is: CH4 + 2O2 -> CO2 + 2H2O, this means O2 is the limiting reagent, => rate of formation of CO2 = 10/2 = 5 mole/min.