Question

For value of m, the change in liquid concentration is independent of tray location if

(a) L/V = 1

(b) V/L =1

(c) L/mV=1

(d) Vm/L=1

I have been asked this question by my school teacher while I was bunking the class.

This intriguing question comes from Minimum Stages topic in section Column Process Design, Optimization and Shortcut Calculations of Distillation Design

Answer 1

Correct option is (c) L/mV=1

Easy explanation: At this condition slope of operating line equals to slope of equilibrium line, i.e. m = 1 this shows the steady state operation.