Question

The vapour pressure of a pure liquid 'P' is 70 torr at 27°C. It forms an ideal solution with
another liquid 'Q. The mole fraction of 'Q' in the solution is 0.2 and total pressure of
solution is 84 torr at 27°C. The vapour pressure of pure liquid 'Q' at 27°C is:
(A)
14 torr (B) 56 torr (C) 140 torr
(D) 70 torr​

Answer 1

Answer:

$= > \: 70 \: torr$

Answer 2

Answer:

(a).14. torr this is the answer