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The enthalpy change for transition of li...

The enthalpy change for transition of liquid water to steam is 40.8 kJ `mol^(-1)` at 373K. Calculate `Delta S` for the process.

A

209.4

B

109.4

C

250

D

`-209` A

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta_("vap")S^(@) (Delta_("vap")H^(@))/T, Delta_("vap")S^(@) = (40.8 xx 10^(3))/(373) = 109.4 JK^(-1) mol^(-1)`
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