Question

What is the relative humidity of a gas with a partial pressure of water vapor 360 Pa and vapor pressure 1 atm?

(a) 100%

(b) 225.1%

(c) 355.4%

(d) 405.9%

This question was addressed to me by my college director while I was bunking the class.

I would like to ask this question from Partial Saturation Terminology in chapter Two Phase Gas – Liquid Systems, Phase Rule and Vapor-Liquid Equilibria of Basic Chemical Engineering

Answer 1

Right option is (c) 355.4%

For explanation I would say: Relative humidity = 360/101.3*100 = 355.4%.