Question

Why is the freezing point of a solution always less than that of the puresolvent?​

Answer 1

Answer:

freezing points are lower than that of the pure solvent or solute because freezing, or becoming solid, creates order and decreases entropy. Solutions have high entropy because of the mix of solvent and solute, so it takes more energy to decrease their entropy to the same point.

Answer 2

Answer:

the vapour pressure of solution is less than its pure solvent

so freezing point is less than its pure solvent

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