Question

Pressure of a gas at temperature T is P, What is the pressure of the gas at 2T, use B = 1?

(a) Pe^1/T

(b) Pe^1/2T

(c) Pe^1/3T

(d) Pe^1/4T

I have been asked this question in an online interview.

My enquiry is from Modeling and Predicting Vapor Pressure topic in division Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering

Answer 1

Right answer is (b) Pe^1/2T

Explanation: ln P/P2 = 1*(1/2T – 1/T), => P2 = Pe^1/2T.