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Boiling

Enthalpy of v...

Question

Enthalpy of vaporization of different liquids A,B,C,D are in order B>C>A>D. Arrange their boiling points here.

A

A

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B

B

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C

C

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D

D

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Solution

Boiling point of a liquid depends upon its enthalpy of vaporization. As the enthalpy of vaporization increases, the boiling point also increases. Hence order of boiling points is same as enthalpy of vaporization. Therefore, the correct order of boiling points is B>C>A>D.

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