A reactor supplied with CO2 and H2O, the product contains CO2, H2O and H2CO3, if the rate of products is 10 mole and percentage of CO2 in products is 20%, what is the feed rate of H2O?(a) 2 mole(b) 4 mole(c) 8 mole(d) 10 moleThe question was posed to me in quiz.The question is from Element Material Balances in portion The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

A reactor supplied with CO2 and H2O, the product contains CO2, H2O and

1.	A reactor supplied with CO2 and H2O, the product contains CO2, H2O and H2CO3, if the rate of products is 10 mole and percentage of CO2 in products is 20%, what is the feed rate of H2O?(a) 2 mole(b) 4 mole(c) 8 mole(d) 10 moleThe question was posed to me in quiz.The question is from Element Material Balances in portion The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering
Answer» RIGHT choice is (C) 8 MOLE Easy explanation: The reaction is CO2 + H2O -> H2CO3. Let the rate of H2O be W, and percentage of H2O in products be x. Material balances, H: W(2) = x10(2) + (1 – x – 0.2)10(2), => W = 8 mole.

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