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Section: Chemistry

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Question : 11

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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 2Kkgmol−1.The figures shownbelow represent plots of vapour pressure (V.P.) versus temperature (T). [molecular weight of ethanol is 46gmol−1] Among the following, the option representing change in the freezing point is :

[JEE Adv 2017 P2]

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