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QAIPMT-2005-Ch-2505: NEET 2005 Chemistry - Class 12 AIPMT-2005-Ch-2505 Solution: The vapour pressure of two liquids P and Q are 80 and 60 torr,…
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 mole of P and 2 mole of Q would be
Multiple Choice Options
- A 72 torr
- B 140 torr
- C 68 torr
- D 20 torr
Step-by-Step Verified Solution
Hence total vapour pressure
= [(Mole fraction of P) _ (Vapour pressure of P)]
+ [(Mole fraction of Q) _ Vapour pressure of Q)]
= ( 3 5 _ 80 + 2 5 _ 60 )
= 48 + 24 = 72 torr