Question

Under what condition is two component systems converted to one component system?

(a) Decrease the temperature

(b) Add a miscible liquid

(c) Add an immiscible liquid

(d) Decrease the pressure

This question was addressed to me during a job interview.

My doubt is from One Component System in section Phase Rule of Engineering Chemistry I

Answer 1

Correct choice is (c) Add an immiscible liquid

For explanation I would say: We know that two miscible liquids form a homogeneous mixture. Similarly, if an immiscible liquid is added to the two component systems, then under high temperature and pressure, it can be converted into one component system.