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11th Class Physics Thermodynamical Processes Question Bank Critical Thinking

  • question_answer
    For a reaction to occur spontaneously    [CBSE PMT 1995]

    A)                 \[(\Delta H-T\Delta S)\] must be negative

    B)                 \[(\Delta H+T\Delta S)\] must be negative

    C)                 \[\Delta H\] must be negative

    D)                 \[\Delta S\] must be negative

    Correct Answer: A

    Solution :

              \[\Delta G=\Delta H-T\Delta S\] is negative for spontaneity.


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