JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Question Bank Electrode potential Ecell Nernst equation and ECS

  • question_answer
    The e.m.f. of the cell \[Ag|A{{g}^{+}}(0.1M)||A{{g}^{+}}(1M)|Ag\] at 298 K is                                    [DCE 2003]

    A)                 0.0059 V              

    B)                 0.059 V

    C)                 5.9 V     

    D)                 0.59 V

    Correct Answer: B

    Solution :

               \[Ag|A{{g}^{+}}(.1m)||A{{g}^{+}}1M|Ag|\]                    \[{{E}_{Cell}}=\frac{2.303RT}{nF}\log \frac{{{c}_{1}}}{{{c}_{2}}}=\frac{0.059}{1}\log \frac{1}{0.1}\]                                         \[=0.059\log 10=0.059\ Volt\].


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