Liquid A and B from an ideal solution. If vapour pressure of pure A and B are 500 `Nm^(-2)` and 200 `Nm^(-2)` respectively , the vapour pressure of a

Question

Liquid A and B from an ideal solution. If vapour pressure of pure A and B are 500 `Nm^(-2)` and 200 `Nm^(-2)` respectively , the vapour pressure of a

Liquid A and B from an ideal solution. If vapour pressure of pure A and B are 500 `Nm^(-2)` and 200 `Nm^(-2)` respectively , the vapour pressure of a solution of A in B containint 0.2 mole fraction of A would be
A. `700 N m^(-2)`
B. `300 N m^(-2)`
C. `260 N m^(-2)`
D. `140 N m^(-2)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`P_(A) = X_(A) P_(A)^(o)=0.2 xx 500 = 100 N m^(-2)`
`P_(B)=X_(B)P_(B)^(o)=0.8 xx 200 = 160 N m^(-2)`
Total V.P. of the solution =`100+160=260Nm^(-2)`

4 views Answered 2023-02-05 15:29