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  • Help me answer: When a substance is dissolved in a solvent, the vapour pressure of solvent decreases. It brings

When a substance is dissolved in a solvent, the vapour pressure of solvent decreases. It brings

  • Option 1)

    A decrease in boiling point of solution

  • Option 2)

    An increase in boiling point of the solution

  • Option 3)

    A decrease in freezing point of the solution

  • Option 4)

    An increase in freezing point of the solution

 

Answers (1)

best_answer

As we learned 

 

Elevation in Boiling point -

Boiling poin increases because vapour pressure decreases.

- wherein

 

 As we know that

Boiling\; point\propto \frac{1}{vapour\: pressure\: of\: liquid}

Hence, on decreasing vapour pressure, boiling point will increase.

 


Option 1)

A decrease in boiling point of solution

Option 2)

An increase in boiling point of the solution

Option 3)

A decrease in freezing point of the solution

Option 4)

An increase in freezing point of the solution

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Plabita

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