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For a spontaneous process, correct state...

For a spontaneous process, correct statement (s) is (are)-

A

`(DeltaG_(sys))_(T,P) gt0`

B

`DeltaS_(sys)+DeltaS_("surr")gt0`

C

`(DeltaG_("sys"))_(T,P) lt0`

D

`(DeltaU_(sys))_(T,V) gt0`

Text Solution

Verified by Experts

The correct Answer is:
B, C
For a spontaneous process at constant pressure and pressure and temperature, `DeltaS_("univ") gt 0 or, DeltaS_(sys)+DeltaS_("surr")gt0`
Now, `DeltaG=-TDeltaS_("univ")`. For a spontaneous process, `DeltaS_("univ")gt0`, and hence `DeltaG lt0`.
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