Question

Calculate b? If xD= 0.95 and R=8

(a) 0.445

(b) 0.118

(c) 0.2375

(d) 0.568

The question was asked in an internship interview.

I would like to ask this question from Analytical X-Y Diagram -Smoker’s Equation in section Column Process Design, Optimization and Shortcut Calculations of Distillation Design

Answer 1

Correct choice is (c) 0.2375

Easiest explanation: AS xD/R+1 = 0.95/8+1= 0.2375.