Question

Liquid $A$ and $B$ form ideal solution for all compositions of $A$ and $B$ at $25^{\circ} C$. Two such solutions with $025$ and $050$ mole fractions of $A$ have the total vapour pressures of $03$ and $04$ bar, respectively. What is the vapour pressure of pure liquid $B$ in bar?

Answer 1

Vapor pressure of pure liquid B is 0.2 bar.