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JEE Main & Advanced AIEEE Solved Paper-2003

  • question_answer
    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 change in entropy (dS), satisfy the criteria     AIEEE  Solved  Paper-2003

    A) \[{{(dS)}_{V,E}}<0,{{(dG)}_{T,P}}<0\]    

    B) \[{{(dS)}_{V,E}}>0,{{(dG)}_{T,P}}<0\]

    C) \[{{(dS)}_{V,E}}=0,{{(dG)}_{T,P}}=0\]

    D) \[{{(dS)}_{V,E}}=0,{{(dG)}_{T,P}}>0\]

    Correct Answer: B

    Solution :

    An irreversible process \[\Rightarrow \]   spontaneous process     \[\Rightarrow \]  \[{{(dS)}_{V.E.}}\](change in entropy) s = + ve > 0              \[={{(dG)}_{T,p}}\] (change in Gibbs free energy) ? ve < 0


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