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Calculate standard free energy change for the reaction 2 A g + 2 H + → H 2 + 2 A g + Given: E A g + / A g o = + 0.80 V

Options

  1. A308.08 kJ
  2. B154.4 kJ
  3. C77.2 kJ
  4. D– 154.4 kJ

Correct answer

B. 154.4 kJ

Step-by-step solution

E c e l l o = E H 2 o - E A g o = 0 - 0.80 = - 0.80 Δ G ° = - n F E c e l l o = - 2 × 96500 × ( - 0.8 ) = + 154.4 k J

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