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Why the diffusion pressure of pure solvent decreases when solute is added in it.

Why the diffusion pressure of pure solvent decreases when solute is added in it.

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1 Answers

Arun
25758 Points
3 years ago

If you add a nonvolatile solute to solvent such as water, you decrease the tendency for water molecules to evaporate into the gas phase. In essence, the solute particles obstruct or reduce the likelihood of evaporation.

As a result, fewer molecules change from the liquid to the gas phase, thus reducing the vapor pressure.

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