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JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Sample Paper Topic Test - Electrochemistry

  • question_answer
    The standard EMF of a cell having one electron change is found to be 0.591 V at \[\text{25}{}^\circ \text{C}\]. The equilibrium constant of the reaction is:

    A) \[1.0\times {{10}^{30}}\]

    B) \[1.0\times {{10}^{5}}\]          

    C) \[1.0\times {{10}^{10}}\]

    D) \[1.0\times {{10}^{1}}\]

    Correct Answer: C

    Solution :

    [c] \[E_{cell}^{o}=\frac{0.059}{1}\log {{K}_{c}}\]
                            \[0.059=\frac{0.059}{1}\log {{K}_{c}}\]
                \[\therefore \]      \[{{K}_{c}}=1\times {{10}^{10}}\]


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