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In an irreversible process taking place ...

In an irreversible process taking place at constant `T` and `P` and in which only pressure-volume work is being done, the change in Gibbs free energy `(dG)` and the change in entropy `(dS)` satisfy the criteria

A

`(dS)_(V,E) lt0`, `(dG)_(T,P) lt 0`

B

`(dS)_(V,E) gt0`, `(dG)_(T,P) lt 0`

C

`(dS)_(V,E) =0`, `(dG)_(T,P) = 0`

D

`(dS)_(V,E) =0`, `(dG)_(T,P) gt 0`

Text Solution

Verified by Experts

The correct Answer is:
B
For a spontaneous process (or irreversible process)
`(dS)_(E)`, `v gt 0`, `(dG)_(T,P) lt 0`, `(dU)_(S,V) lt 0` or `(dH)_(S,P) lt0`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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