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Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionRaoult's LawEasy2 minPYQ_2020

ChemistryEasysingle choice

The vapour pressures of pure benzene and toluene are 160 and 60mm Hg respectively. The mole fraction of benzene is vapour phase in contact with equimolar solution of benzene and toluene is

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Answer:

Solution:

$P_{T} = 160 \times \frac{1}{2} + 60 \times \frac{1}{2} = 110$

$P_{B} = P_{B}^{o} \times B = 160 \times \frac{1}{2}$

$P_{B} = P_{T} X_{B} \Rightarrow 80 = 110 Y_{B}$

$Y_{B} = \frac{80}{110} = 0.73$

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

⏱ 2mℹ️ Source: PYQ_2020

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