The vapour pressure of two liquid P and ...

The vapour pressure of two liquid P and Q are 80 torr and 60 torr respectively. The total vapour pressure obtained by mixing `3` moles of P and 2 mole of Q would be

68 torr

20 torr

140 torr

72 torr

Text Solution

Verified by Experts

The correct Answer is:

`P_(M)=80xx(3)/(5)+60xx(2)/(5)`
`48+24=72` torr

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