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Question: Answered & Verified by Expert
Calculate standard free energy change for the reaction 2Ag+2H+H2+2Ag+

Given: EAg+/Ago=+0.80V
ChemistryElectrochemistryJEE Main
Options:
  • A 308.08 kJ
  • B 154.4 kJ
  • C 77.2 kJ
  • D – 154.4 kJ
Solution:
1104 Upvotes Verified Answer
The correct answer is: 154.4 kJ
Ecello=EH2o-EAgo

=0-0.80=-0.80

ΔG°=-nFEcello

=-2×96500×(-0.8)

=+154.4 kJ

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