Question

A reactor is supplied with 10 moles of O2 and 10 moles of H2, if the extent of reaction is 5, how many moles of water is produced?

(a) 5

(b) 10

(c) 15

(d) 20

I had been asked this question in examination.

This interesting question is from Species Material Balances in chapter The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer 1

The correct answer is (b) 10

For explanation I would say: The chemical reaction is 2H2 + O2 -> 2H2O, => moles of H2O produced = 5*2 = 10.