Practice question
Question
A cell has E°cell = 0.88 V and Δr G° = -169840 J/mol at 298 K. How many electrons are transferred? (F = 96500 C/mol)
Explanation
Δr G° = -n F E°cell , -169840 = -n × 96500 × 0.88 . n = (169840/96500 × 0.88) = (169840/84920) ≈ 2 .
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