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For the process H(2)O(l) (1 "bar", 373 K...

For the process `H_(2)O(l) (1 "bar", 373 K) rarr H_(2)O(g) (1"bar", 373 K)` the correct set of thermodynamic parameters is

A

`Delta G = - ve, Delta S = + ve`

B

`Delta G = + ve, Delta S = 0`

C

`Delta G = 0, Delta S = + ve`

D

`Delta G = 0, Delta S = - ve`

Text Solution

Verified by Experts

The correct Answer is:
C
At the transition temperature (that is, at the boiling point), the system is at equilibrium. Therefore, `Delta G = 0`. Due to the conversion of liquid into vapor, the randomness of the system increase. Thus, `Delta S` is positive `( gt 0)`.
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