Question

What is the relative saturation of a gas with partial pressure 10 mm Hg and vapor pressure 5 mm Hg?

(a) 0.5

(b) 1

(c) 2

(d) 4

I had been asked this question by my college director while I was bunking the class.

My doubt is from Partial Saturation Terminology in division Two Phase Gas – Liquid Systems, Phase Rule and Vapor-Liquid Equilibria of Basic Chemical Engineering

Answer 1

The correct answer is (c) 2

To explain I would say: Relative saturation = 10/5 = 2.