Material Balances on Chemical Engineering related Questions and Answers

Question :   In a batch process, 5 mole of H2 and 3 mole of CO2 entered a vessel with some CO2, if 10 mole of product leaves the vessel, what is the percentage of H2 in the product? 1. 10% 2. 30% 3. 50% 4. 80% Answer :   3 - 50%