Question

In a reaction the feed is 5 moles of 0.5 glucose and 0.5 sucrose, and another feed of 15 moles of 0.3 glucose and 0.7 sucrose, what is the fraction of glucose in the products?

(a) 0.35

(b) 0.45

(c) 0.75

(d) 0.95

I had been asked this question during an interview.

Asked question is from Solving Energy Balance Problems in section Application of Energy Balances in the Absence of Chemical Reactions and Energy Balances: How to Account for Chemical Reaction of Basic Chemical Engineering

Answer 1

Correct choice is (a) 0.35

To explain: Glucose balance: 5*0.5 + 15*0.3 = x*20, => x = 0.35.