Question

Have a look on the below diagram

(a) Here, DE and DP are the operating line. Also Y and X are the concentrations in mole ratio for gas and liquid phase.

(b) It’s clearly a representation of an absorber. For the operating line DE minimum liquid is required

(c) True

(d) False

The question was asked by my school teacher while I was bunking the class.

My doubt stems from Operating Line Concept for Absorption in section Gas Absorption of Mass Transfer

Answer 1

Correct option is (b) It’s clearly a representation of an absorber. For the operating line DE minimum liquid is required

The explanation is: DP line requires minimum liquid because the composition is increased to X2.