Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2011

  • question_answer
    The relationship between Gibb's free energy change \[(\Delta G)\] and emf (E) of a reversible electrochemical cell is given by

    A)  \[\Delta G=nFE\]       

    B)  \[\Delta G=nF/E\]

    C)  \[\Delta G=-nFE\]

    D)  \[\Delta G=E/nF\]

    Correct Answer: C

    Solution :

    The Gibb's free energy change \[\Delta G\] and emf \[({{E}^{o}})\] of a reversible electrochemical cell are related by the following expression. \[\Delta G=nFE_{cell}^{o}\] \[\Delta G=-nFE\]


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