Question

If the area of the column is 3.61 m^2 and the initial and final distilled moles are 0.95 and 0.50 with Withdrawal of 100 moles, then V is?

(a) 162

(b) 456

(c) 78

(d) 45

I had been asked this question during an internship interview.

Query is from Constant Reflux Ratio in chapter Batch Distillation of Distillation Design

Answer 1

Right answer is (a) 162

Easiest explanation: As V= W0 (Xd – X0) (Area) = 100 (0.95-0.50)3.61 = 162 moles.