Solutions Question 124

Question: The vapour pressure of two liquids P and Q are 80 and 600 torr, respectively. The total vapour pressure of solution obtained by mixing 3 mole of P and 2 mole of Q would be [CBSE PMT 2005]

Options:

A) 140 torr

B) 20 torr

C) 68 torr

D) 72 torr

Show Answer

Answer:

Correct Answer: D

Solution:

PT=PP0XP+PQ0XQ ; PT=80×35+60×25

PT=48+24=72 torr .



NCERT Chapter Video Solution

Dual Pane