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Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2020

ChemistryEasysingle choice

The vapour pressure of solvent decreases by $10 mm Hg$ if mole fraction of non volatile solute is $0.2$ Calculate vapour pressure of solvent.

Options:

Answer:

Solution:

(A) $P_{0} - P = 10 mm of Hg, x_{2} = 0.2 P_{0} = ?$ According to Raoult's Law $\frac{P _{0} - P}{P _{0}} = x_{2} ∴ \frac{10 mm of Hg}{P _{0}} = 0.2 ∴ P_{0} = 50 mm of Hg$

Stream:MHT_CETSubject:ChemistryTopic:Liquid SolutionSubtopic:Abnormal Colligatiove Properties

⏱ 2mℹ️ Source: PYQ_2020

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