alleryStart learning →What does a galvanic cell do?
ATurns a spontaneous reaction into electricity
BTurns electricity into a spontaneous reaction
CTurns heat into a spontaneous reaction
DTurns light into a spontaneous reaction
Answer & Solution
Correct answer: A. Turns a spontaneous reaction into electricity
1. A galvanic cell separates the oxidation from the reduction into two half-cells.
2. Electrons then have to travel through an external wire to get from one half to the other.
3. That flow of electrons through the wire is an electric current.
4. So the chemical energy of a spontaneous redox reaction leaves the cell as electrical energy.
_Source: OpenStax Chemistry (CC BY 4.0), Chs 7 and 17, section 17.2 Galvanic Cells_
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