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Chemistry · L4 · Galvanic vs electrolytic cells: energy conversion & examples

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Decision flow contrasting spontaneous galvanic cells (batteries) with externally-driven electrolytic cells (electroplating, water electrolysis).

by @openstemUpdated Chemistry
Redox reactionof interestIs E°cellpositive?Galvanic cellΔG° < 0 — spontaneousElectrolytic cellΔG° > 0 — non-spontaneousChemical energy → electrical energycell generates its own currentExamples: AA batteries,car batteries, fuel cellsElectrical energy → chemical energyexternal power source forces the reactionExamples: electroplating,electrolysis of water,recharging a batteryYes (E°cell > 0)No (E°cell < 0)

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