Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionRaoult's LawMedium2 minQB

ChemistryMediumnumerical

Passage / Comprehension

10 mole of liquid 'A' and 20 mole of liquid 'B' are mixed in a cylindrical vessel containing a piston arrangement. Initially, a pressure of 2 atm is maintained on the solution. Now, the piston is raised slowly and isothermally.

Assume ideal behavior of the solution, and A and B are completely miscible.

$P_{A}^{0} = 0.6 a t m$ and $P_{B}^{0} = 0.9 a t m$ .

The pressure (in atm) below which the evaporation of liquid solution will start, is :

Answer:

0.80

Solution:

$P = \frac{10}{30} \times 0.6 + \frac{20}{30} \times 0.9 = 0.2 + 0.6 = 0.8$ .

Stream:JEESubject:ChemistryTopic:Liquid SolutionSubtopic:Raoult's Law

⏱ 2mℹ️ Source: QB

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