Question

If the fraction of water vapor at 27^oC and 5 atm is 0.5, then what is the fraction of water vapor at 27^oC and 1 atm?

(a) 0.1

(b) 0.2

(c) 0.5

(d) 0.8

This question was posed to me during an interview.

I would like to ask this question from Condensation topic in portion Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering

Answer 1

The correct answer is (a) 0.1

To elaborate: Fraction of water vapor at 27^oC and 1 atm = 0.5/5 = 0.1.