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Two liquids X and Y form an ideal soluti...

Two liquids X and Y form an ideal solution. The mixture has a vapour pressure of 400 mm at 300 K when mixed in the molar ratio 1:1. when mixed in the molar ratio of 1:2 at the same temperatre the vapour pressure of the mixture is 350 mm. The vapour pressure of the two pure liquids X and Y respectively are

A

250 mm, 550 mm

B

350 mm, 450 mm

C

550 mm, 250 mm

D

500 mm, 250 mm

Text Solution

Verified by Experts

`400=(P_(x)^(@))/2+(P_(Y)^(@))/2, 350=(P_(x)^(@))/3+(2p_(Y)^(2))/3`
`p_(X)^(@)=550mm P_(Y)^(@)=250 mm`
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