Pure water freezes at 273 K and 1 bar. The addition of 34.5 g of ethanol to 500 g of…

Chemistry · JEE Advanced · NTA ExamsSolutions

Pure water freezes at 273 K and 1 bar. The addition of 34.5 g of ethanol to 500 g of water changes the freezing point of the solution. Use the freezing point depression constant of water as 2 K kg mol-1. The figures shown below represent plots of vapour pressure (V.P.) versus temperature (T). [molecular weight of ethanol is 46 g mol-1]
Among the following, the option representing change the freezing point is (2017)

Answer

(C)

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