Question

will vapour pressure of a solvent increase or decrease when we add non volatile solute to if?? give reason for the answer​

Answer 1

Answer:

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Because some of the surface is now occupied by solute particles, there is less room for solvent molecules. This results in less solvent being able to evaporate. The addition of a nonvolatile solute results in a lowering of the vapor pressure of the solvent.

Explanation:

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