Liquids A and B form ideal solution for all compositions of A and B at 25^(∘)C. Two such solutions with 0.25 and 0.50 mole fractions of A have the…

Question

Liquids A and B form ideal solution for all compositions of A and B at 25^(∘)C. Two such solutions with 0.25 and 0.50 mole fractions of A have the total vapor pressures of 0.3 and 0.4 bar, respectively. What is the vapor pressure of pure liquid B in bar?

MARKS Content Team · Accepted Answer

Correct answer: 0.2. P_(Total )=PAoX_A+PBoX_B (i) 0.3=(PAo)1/4+(PBo)3/4 PA∘+PB∘=1.2 (ii) 0.4=(PAo)1/2+(PBo)1/2 PA∘+PB∘=0.8 From equation (1) and equation (2) PBo=0.2 bar and PAo=0.6 bar

Liquids $A$ and $B$ form ideal solution for all compositions of $A$ and $B$ at $25^{\circ} C$ . Two such solutions with $0.25$ and $0.50$ mole fractions of $A$ have the total vapor pressures of $0.3$ and $0.4$ bar, respectively. What is the vapor pressure of pure liquid $B$ in bar?

Solution

Relevant Questions

Liquids A and B form ideal solution for all compositions of A and B at 25∘C. Two such solutions with 0.25 and 0.50 mole fractions of A have the total vapor pressures of 0.3 and 0.4 bar, respectively. What is the vapor pressure of pure liquid B in bar?

Solution

Relevant Questions

Liquids $A$ and $B$ form ideal solution for all compositions of $A$ and $B$ at $25^{\circ} C$ . Two such solutions with $0.25$ and $0.50$ mole fractions of $A$ have the total vapor pressures of $0.3$ and $0.4$ bar, respectively. What is the vapor pressure of pure liquid $B$ in bar?