Question

In a batch process, 2 mole of SO2 and 3 mole of CO2 entered a vessel with some SO2, if 5 mole of product leaves the vessel, what is the percentage of SO2 in the product?

(a) 10%

(b) 20%

(c) 40%

(d) 50%

I had been asked this question in semester exam.

My question is based upon Material Balances for Batch and Semi-Batch Processes topic in chapter Introduction to Material Balances of Basic Chemical Engineering

Answer 1

The correct choice is (c) 40%

For explanation I would say: Percentage of H2 in the product = 2/5*100 = 40%.