Sea water does not freeze at 0^(@)C.Give...

Sea water does not freeze at `0^(@)C`.Give reason.

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A solution of non-volite solute in water freezes at -0.30^(@)C .The vapour pressure of pure water at 298 K is 23.51 mm Hg .and K_(f) for water is 1.86 degree per molal. Calculate the vapour pressure of this solution at 298 K .

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Sea water does not freeze at 0^(@)C.Give reason.
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