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Question

How Do Impurities Affect Freezing Point ?


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Solution

The effect of impurities on freezing point is explained below:

  1. Freezing point of a substance is the temperature at which the liquid and solid state are in equilibrium with each other.
  2. When a solute is added in the solution, the depression in freezing point occurs.
  3. This is due to the reason in the presence of impurities, vapour pressure becomes lower than that of pure solvent.

The above points clearly explains the effect of impurities on freezing point.


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