Practice question
Question
A cell has E°cell = 1.10 V and Δr G° = -424600 J/mol at 298 K. What is the number of electrons transferred? (F = 96500 C/mol)
Explanation
Δr G° = -n F E°cell , -424600 = -n × 96500 × 1.10 . n = (424600/96500 × 1.10) = (424600/106150) ≈ 4 .
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