Question

HJ is defined as the

(a) Ideal enthalpy

(b) Total enthalpy

(c) Final enthalpy

(d) Pure enthalpy

This question was addressed to me during an interview for a job.

I'd like to ask this question from Inside Out Method topic in chapter Rigorous Distillation Calculations of Distillation Design

Answer 1

Right choice is (a) Ideal enthalpy

The best I can explain: HJ is defined as the Ideal enthalpy based on liquid and gas compositions, while Hideal is defined as the ideal enthalpy.