1.

A solution is separated from pure solvent by a semipermeablemembrane at 298 K. The difference in the height of thesolution and the solvent is 0.9 m. If Kf and freezing point ofthe solvent are 30 K kg mol1 and 250.3 K, respectively, thetemperature at which the solution freezes is:(a) 250.10 K(c) 250.20 K(ISAT 2010)(b) 250.25 K(d) 250.05 K

Answer» A solution is separated from pure solvent by a semipermeable
membrane at 298 K. The difference in the height of the
solution and the solvent is 0.9 m. If Kf and freezing point of
the solvent are 30 K kg mol1 and 250.3 K, respectively, the
temperature at which the solution freezes is:
(a) 250.10 K
(c) 250.20 K
(ISAT 2010)
(b) 250.25 K
(d) 250.05 K


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