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Two liquids A and B with vapour pressure...

Two liquids A and B with vapour pressures 400mm Hg and 600mm Hg respectively formed a binary ideal liquid mixure shown in the following diagram . (Temepature =constant)

If the mole fraction of 'A' in the vapour phase is 0.5 , What is the optimum pressure , above which the vapour phase can start condensig back into liquid.

A

500mmHg

B

660mmHg

C

400mmHg

D

550mmHg

Text Solution

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The correct Answer is:
A
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