Question

In a batch process, 5 mole of SO2 and 3 mole of CO2 entered a vessel with some SO2, if 10 mole of product leaves the vessel, what is the percentage of SO2 in the product?

(a) 10%

(b) 30%

(c) 50%

(d) 70%

I have been asked this question by my college director while I was bunking the class.

I need to ask this question from Material Balances for Batch and Semi-Batch Processes topic in section Introduction to Material Balances of Basic Chemical Engineering

Answer 1

The correct answer is (d) 70%

For explanation I would say: Percentage of H2 in the product = (10 – 3)/10*100 = 70%.