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Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesMedium2 minPYQ_2021

ChemistryMediumsingle choice

What is vapour pressure of a solution when $2 mol$ of a non-volatile solute are dissolved in $20 mol$ of water? $(P_{1}^{\circ} = 32 mm Hg)$

Options:

Answer:

Solution:

$\frac{P ^{\circ} - P _{s}}{P ^{\circ}} = X_{solute} = \frac{n _{solute}}{n _{solute} + n _{solvent}} \frac{32 - P _{s}}{32} = \frac{2}{2 + 20} 32 - P_{s} = \frac{2}{22} \times 32 = 2.90 P_{s} = 32 - 2.90 = 29.1 mm Hg$

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

⏱ 2mℹ️ Source: PYQ_2021

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