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  3. J & K CET Engineering

J & K CET Engineering J and K - CET Engineering Solved Paper-2005

  • question_answer
    For the feasibility of a redox reaction in a cell, the emf should be

    A)  positive      

    B)  fixed

    C)  zero          

    D)  negative

    Correct Answer: A

    Solution :

     For spontaneous reaction \[\Delta G\]should be negate \[\Delta {{G}^{o}}=nF{{E}^{o}}\] where, \[\Delta {{G}^{o}}=\]Free energy charge      \[{{E}^{o}}=\]emf of the cell The value of \[\Delta {{G}^{o}}\]will be negative, if the value of \[{{E}^{o}}\]is positive.


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