Chemistry / Unit 11 Chem 2184 short lesson, about 20 seconds
ΔG° Relates to E°cell
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The idea
Standard free energy change relates to standard cell potential by ΔG° = −nFE°cell, where n is moles of electrons transferred and F is Faraday's constant.
In practice
A reaction with a large positive E°cell yields a large negative ΔG°, the same verdict from two quantities.
Where people slip
The electron count n must match the balanced overall reaction, not either half-reaction's unscaled count.
Your place on the trail
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