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Calculate the entropy change for vaporiz...

Calculate the entropy change for vaporization of `1mol` of liquid water to steam at `100^(@)C`, if `Delta_(V)H = 40.8 kJ mol^(-1)`.

A

`123.56 JK^(-1)mol^(-1)`

B

`96.32 JK^(-1)mol^(-1)`

C

`109.38 JK^(-1)mol^(-1)`

D

`211.82 JK^(-1)mol^(-1)`

Text Solution

Verified by Experts

For entropy change of vaporization, `Delta S_(v)=(Delta H_(v))/(T)`
Given, `Delta H_(v)=40.8xx10^(3)J , T = 373 K " " Delta S_(v) =(40.8xx10^(3))/(373)=109.38 JK^(-1) mol^(-1)`
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