Chemistry, asked by mohdaaif5256, 3 months ago

what causes depression in freezing Point? write the units of kq​

Answers

Answered by Anonymous
14

Answer:

Freezing point depression is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent. When a substance starts to freeze, the molecules slow down due to the decreases in temperature, and the intermolecular forces start to take over.

Explanation:

sorry dear,but I don't know the second part of the question.

I hope it will help u dear

Answered by steffiaspinno
8

The question has a mistake. Correct question is

What causes depression in freezing point. Write the units of K_{f}.

Depression in freezing point:

The causes of solvent's freezing point depression when a solute is added is as follows:

  • The solvent, while reaching the freezing point, there will be an equilibrium between the liquid and solid states.
  • It means that the liquid and solid phases will have the same vapour pressure.
  • In the solution, the vapour pressure is found to be lower than the pure solvent, while a non-volatile solute is added.
  • At lower temperatures, the solid and the solution achieve equilibrium.

The unit of K_{f} is Kelvin kg mol^{-1}. It is a freezing point depression constant.

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