Question

CH4 + 2O2 -> CO2 + 2H2O, what is the extent of reaction if only 50% of 96 grams of CH4 is consumed?

(a) 1

(b) 2

(c) 3

(d) 4

I got this question in semester exam.

Question is taken from Stoichiometry Applications Terminology in division The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer 1

Right choice is (c) 3

To explain: Moles of CH4 = 96/16 = 6, => Extent of reaction = (6*0.5 – 6)/(-1) = 3.