Chemistry, asked by yg2886670, 1 month ago

Give two points to explain why vapour pressure of solvent is lowered by dissolving nonvolatile solute into it.

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Answered by ashauthiras

5

Answer:

Nonvolatile means that the solute itself has little tendency to evaporate. Because some of the surface is now occupied by solute particles, there is less room for solvent molecules. Since the solute particles do not evaporate, the vapor pressure of the solution is lower than that of the pure solvent.

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