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The vapour pressure of two liquids P and...

The vapour pressure of two liquids P and Q are 80 and 60 torr, respectively. The total vapour pressure of solution obtained by mixing 3 moles of P and 2 moles of Q would be

A

68 Torr

B

140 Torr

C

48 Torr

D

72 Torr

Text Solution

Verified by Experts

The correct Answer is:
D
Total vapour pressure
`= (80 xx 3)/(5) + (60 xx 2)/(5) = 72` Torr
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