Solutions Question 317

Question: At a particular temperature, the vapour pressures of two liquids A and B are respectively 120 and 180 mm of mercury If 2 moles of A and 3 moles of B are mixed to form an ideal solution, the vapour pressure of the solution at the same temperature will be (in mm of mercury)

Options:

A) 156

B) 145

C) 150

D) 108

Show Answer

Answer:

Correct Answer: A

Solution:

Vapour pressure of solution $ =P_{A}+P_{B} $

$ =P_A^{{}^\circ }X_{A}+P_B^{{}^\circ }X_{B}=\frac{120\times 2}{5}+\frac{180\times 3}{5} $ =156 mmHg



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक