Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionRaoult's LawMedium2 minQB

ChemistryMediumsingle choice

If two liquids, A and B are mixed together at $2 5^{\circ} C$ to form a solution in which $X_{B} = 0.92$ , then total vapour pressure of solution is observed to be 0.95 atm . If vapour pressure of pure A and pure B are 300 torr and 800 torr respectively at $2 5^{\circ} C$ , then correct option for this solution is -

Options:

Answer:

Solution:

$P_{T} = P_{A}^{0} X_{A} + P_{B}^{0} X_{B} = 0.08 \times 300 + 0.92 \times 800$

$= 760 torr \Rightarrow 1 atm > P_{obs}$

Show - ve deviation from raoult law.

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

⏱ 2mℹ️ Source: QB

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