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NEET Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Self Evaluation Test - Thermodynamics

  • 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

    A) \[{{(\Delta S)}_{V,E}}>0,{{(\Delta G)}_{T,P}}<0\]

    B) \[{{(\Delta S)}_{V,E}}=0,{{(\Delta G)}_{T,P}}=0\]

    C) \[{{(\Delta S)}_{V,E}}=0,{{(\Delta G)}_{T,P}}>0\]

    D) \[{{(\Delta S)}_{V,E}}<0,{{(\Delta G)}_{T,P}}<0\]

    Correct Answer: A

    Solution :

    [a] For spontaneous reaction, \[dS>0\]and \[\Delta G\]and \[\Delta G\] should be negative i.e. < 0.


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