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The cryoscopic constant and freezing point of benzene is "5.12 K kg mol"^(-1) and 278.6 K respectively. At what temperature will one molal solution of benzene containing a nonelectrolyte (i=1) freeze? |
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Answer» SOLUTION :Depression in breezing point `(DeltaT_(f))` for dilute solution is directly proportional to molality `DeltaT_(f)alpham` `DeltaT_(f)=K_(f)m` `"GIVEN : "K_(f)="5.12 K kg MOL"^(-1)` `T_(f)^(@)=278.6K` `m="1 MOLAL"DeltaT_(f)=5.12 xx1` `""DeltaT_(f)=5.12K` `W.K.T""Delta_(f)=T_(f)^(@)-T_(f)` `5.12 =278.6-T_(f)` `T_(f)=278.6-5.12` `T_(f)=273.48K` |
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