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NEET-XII-Chemistry

03: Electrochemistry

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  • #6
    The cell in which the following reactions occurs:



    has

    = 0.236 V at 298 K.

    Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction.
    Ans : Here, n = 2, T = 298 K

    We know that:



    = -2 × 96487 × 0.236

    = -45541.864 J mol-1

    = -45.54 kJ mol-1

    Again, -2.303RT log Kc



    = 7.981

    ∴Kc = Antilog (7.981)

    = 9.57 × 107