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1 mole of A and 1 mole B are mixed toget...

1 mole of A and 1 mole B are mixed together to form an ideal solution at `25^(@)C`. Solution is placed in a vessel fitted with piston. If pressure on the solution is reduced isothermally.

Composition of first vapour formed from liquid mixture with `x_(A)= 0.5` will have mole fraction of `y_(A) and y_(B)` in the vapour phase are

A

`y_(A)= 0.7, y_(B)= 0.3`

B

`y_(A)= 0.3, y_(B)= 0.7`

C

`y_(A)= 0.5, y_(B)= 0.5`

D

data insufficient

Text Solution

Verified by Experts

The correct Answer is:
B
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