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Mole fraction of acetic acid in benzene given a solution having freezing point 277.4K. Freezing point of benzene is 278.4K and heat of fusion of benzene is 10.042 kJ/mol. If molarity of solution is equal to molality, and acetic acid is found in equilibrium with it dimmer, than answer the following based upon above data. K_(f) for benzene is

Answer»

3K `XX` molality
`2K xx` molality
`5K xx` molality
`10K xx` molality

Answer :C


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