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The vapour pressure of a liquid decrease...

The vapour pressure of a liquid decreases by 10 torr when a non-volatile solute is dissolved. The mole fraction of the solute in solution is 0.1. What would be the mole fraction of the liquid if the decrease in vapour pressure is 20 torr, the same solute being dissolved?

A

0.2

B

0.9

C

0.8

D

0.6

Text Solution

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The correct Answer is:
C
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