Chemistry - Liquid Solution Question with Solution | TestHub
ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2006
ChemistryEasysingle choice
Assertion : The water pouch of instant cold pack for treating athletic injuries breaks when squeezed and dissolves lowering the temperature. Reason : Addition of non-volatile solute into solvent results into depression of freezing point of solvent.
Options:
Answer:
A
Solution:
Freezing point of a substance is defined as the temperature at which the vapour pressure of its liquid is equal to the vapour pressure of the corresponding solid. Since the addition of a non-volatile solute always lowers the vapour pressure of solvent, therefore it will be in equilibrium with solid phase at a lower pressure and hence at a lower temperature.
Stream:AIIMSSubject:ChemistryTopic:Liquid SolutionSubtopic:Abnormal Colligatiove Properties
⏱ 2mℹ️ Source: PYQ_2006
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