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Read the paragraph carefully and answer ...

Read the paragraph carefully and answer the following questions:
Mole fraction of acetic acid in benzene given a solution having freezing point 277.4K. Freezing point of benezene 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_(1)` for benzene is

A

`3Kxx` molality

B

`2Kxx` molality

C

`5Kxx` molality

D

`10Kxx` molatily

Text Solution

Verified by Experts

The correct Answer is:
C
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What is the freezing of 0.4 molal solution of acetic acid in benzene in which it dimerises to the extent of Freezing point of benzene is 278.K and its molar heat of fusion is 10-042KJ mol^(-1)