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For the reduction of silver ions with copper metals, the standard cell potential was found to be +0.46 V at 25 C. The value of standard Gibbs energy. Δ G will be ( F = 96500 C m o l - 1 )

Options

  1. A-98.0 kJ
  2. B-89.0 kJ
  3. C-89.0 J
  4. D-44.5 kJ

Correct answer

B. -89.0 kJ

Step-by-step solution

2 A g + + C u → 2 A g + C u 2 + Here n = 2 Δ G = - n F E c e l l Δ G = - 2 × - 96500 × 0.46 J Δ G = - 88.78 k J ≃ - 89 k J

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