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The standard e.m.f of a cell, involving one electron change is found to be 0.591 V at 2 5 o C . The equilibrium constant of the reaction is F = 96500 C m o l - 1 , R = 8.314 J K - 1 m o l - 1

Options

  1. A1.0 × 1 0 30
  2. B1.0 × 1 0 15
  3. C1.0 × 1 0 5
  4. D1.0 × 1 0 10

Correct answer

D. 1.0 × 1 0 10

Step-by-step solution

Relation between K e q and E c e l l is E cell o = 2.303 RT nF logK eq E cell o = 0.0591 n logK eq 0.591 = 0.0591 1 logK eq logK eq = 10 K eq = 1 × 10 10

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