Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionRaoult's LawEasy2 minPYQ_2020
ChemistryEasysingle choice

The vapour pressure of water at20∘C is 17.5 mmHg.

If 18 g of glucose (C6H12O6)is added to 178.2 g of water at20∘C, the vapour pressure of the resulting solution will be

Options:

Answer:
D
Solution:

Moles of glucose =18180=0.1

Moles ofH2O=178.218  9.9 

According to Raoult's law

P°-PsP°=Xsolute

   17.5-PS17.5 =0.110    

so,Ps=17.325 mm Hg 

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Liquid SolutionSubtopic:Raoult's Law
⏱ 2mℹ️ Source: PYQ_2020

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