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The enthalpy of vaporisation of a compou...

The enthalpy of vaporisation of a compound AB a its boiling point `(127^(@)C)` is `6.4 kJ mol^(-1)`. Its entropy of vapourisation is :

A

`2.56 kJK mol^(-1)`

B

`16 JK mol^(-1)`

C

`16 xx 10^(-3) JK mol^(-1)`

D

`1.6 xx 10^(3) kJK mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta S = (6400 J mol^(-1))/(400 K)`
`= 16 JK^(-1) mol^(-1)`
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