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Question: Answered & Verified by Expert
In an irreversible process taking place at constant T and P and in which only P-V work is being done, the change in Gibbs energy (dG) and change in entropy (dS) satisfy the criteria
ChemistryThermodynamics (C)NEET
Options:
  • A (dS)V,U=0,(dG)T,P=0
  • B (dS)V,U=0,(dG)T,P=+ve
  • C (dS)V,U=-ve,(dG)T,P=-ve
  • D (dS)V,U=+ve,(dG)T,P=-ve
Solution:
1219 Upvotes Verified Answer
The correct answer is: (dS)V,U=+ve,(dG)T,P=-ve
For spontaneous change (work is being done by the system)
So (dG)T,P be –ve and (dS)V,U be +ve.

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