Question

A reactor with efficiency 50%, has the feed CO2 and SO2 with mass fraction 0.4 and 0.6 with the rate 10 Kg/hr, what is the rate of CO2 in product side?

(a) 0.5 Kg/hr

(b) 1 Kg/hr

(c) 1.5 Kg/hr

(d) 2 Kg/hr

I got this question in a national level competition.

My doubt stems from Multiple Component Systems in section Introduction to Material Balances of Basic Chemical Engineering

Answer 1

Correct option is (d) 2 Kg/hr

The best I can explain: Rate at product side = 10*50/100 = 5 Kg/hr, => rate of CO2 = 5*0.4 = 2 Kg/hr.