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The freezing point of 0.2 molal solution...

The freezing point of 0.2 molal solution of acetic acid in benzene is `277.65` . Freezing point of pure benzene is `278.4` K and heat of fusion of benzene is `10.04 Kj//"mol"`. If molarity of solution is equal to molality , and acetic acid is found in equilibrium with its dimmer, then answer the following based on this data
The degree of association of acetic acid should be

A

`3 Kxx "molality"^(-1)`

B

`2Kxx"molality"^(-1)`

C

`5Kxx"molality"^(-1)`

D

`10Kxx"molality"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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