Answer:
Figure
explains diagrammatically the depression of freezing point of a liquid.
is
the freezing point of the pure liquid. EBA is the sublimation curve for the
solid solvent. 1
AD is the vapour pressure curve for pure liquid. The point
at which these two curves meet is the freezing point of the pure liquid.
2
Fig.
: Depression of freezing point.
Numerical: Molality of solution:
1
1
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