JCECE Engineering JCECE Engineering Solved Paper-2009

  • question_answer
    For a reaction to be spontaneous, at all temperatures

    A)  \[\Delta G\] and \[\Delta H\] should be negative

    B)   \[\Delta G\] and \[\Delta H\] should be positive

    C)  \[\Delta G=\Delta S=0\]

    D) \[\Delta H<\Delta G\]

    Correct Answer: A

    Solution :

    \[\Delta G=\Delta H-T\Delta S\]For a reaction to be spontaneous \[\Delta G\] must be negative. If \[\Delta G\] and \[\Delta H\] are negative, then reaction will be spontaneous at all temperature.


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