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  • How does the addition of a non-volatile solute affect the vapour pressure of the solvent?Option: 1  It increases the vapour pressure of the solv

How does the addition of a non-volatile solute affect the vapour pressure of the solvent?

Option: 1

 It increases the vapour pressure of the solvent.


Option: 2

 It decreases the vapour pressure of the solvent.

 


Option: 3

 It has no effect on the vapour pressure of the solvent.

 


Option: 4

 The effect depends on the nature of the solvent.

 


Answers (1)

best_answer

The addition of a non-volatile solute decreases the vapour pressure of the solvent. This is because the solute molecules occupy some of the surface area of the solvent, making it more difficult for the solvent molecules to escape into the gas phase.

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Rishi

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