NEET Chemistry NEET PYQ-Electrochemistry

  • question_answer
    Cell reaction is spontaneous when: [AIPMT 2000]

    A) \[E_{red}^{o}\]            is negative

    B) \[E_{red}^{o}\] is positive

    C) \[\Delta {{G}^{o}}\] is negative

    D) \[\Delta {{G}^{o}}\] is positive

    Correct Answer: C

    Solution :

    [c] \[\Delta G=\Delta H-T\Delta S\]
                For a spontaneous cell reaction, \[\Delta H\] should be negative and \[\Delta S\] should be \[+\text{ }ve\]
                Hence, \[\Delta G\] should be negative.


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