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The total pressure exerted in ideal bina...

The total pressure exerted in ideal binary solution is given by `P=P_(A)^(@)X_(A)+P_(B)^(@)X_(B)` where `P_(A)^(@)&P_(B)^(@)` are the respective vapour pressure of pure components and `X_(A)&X_(B)` are their mole fraction in liquid phase. And composition of the vapour phase is determined with the help of Datton's law partial pressure: `Y_(A)=(P_(A)^(@)X_(A))/(P)`
If total pressure exerted in an ideal binary solution is given by `P=(5400)/(60+30Y_(A))mm` of Hg.
If the value of `Y_(A)=0.4` then the value of `X_(B)` is:

A

`0.6`

B

`0.25`

C

`0.4`

D

`0.5`

Text Solution

Verified by Experts

The correct Answer is:
D
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