Question

Which of following is an important assumption of McCabe Thiele method?

(a) Heat loss is maximum

(b) Heat loss is negligible

(c) Heat loss is infinite

(d) Can’t be specified

I had been asked this question in an interview for internship.

I'm obligated to ask this question of Constant Molar Overflow and Other Assumptions in section Key Fractionation Concepts of Distillation Design

Answer 1

Right option is (b) Heat loss is negligible

To explain: The major assumption of McCabe Thiele method is Heat loss is negligible and also an overhead reboiler and condenser are used to recover heat loss.