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The difference(s) between voltaic cells and electrolytic cells is/are: i. Voltaic cell reactions are non-spontaneous while electrolytic cell reactions are spontaneous ii. Voltaic cells have negative Δg while electrolytic cells have positive Δg iii. Voltaic cells have negative E⁰cell while electrolytic cells have positive E⁰cell
Accepted Answer
The correct statements are:
II. Voltaic cells have negative ΔG while electrolytic cells have positive ΔG
III. Voltaic cells have negative E⁰cell while electrolytic cells have positive E⁰cell
Explanation:
Voltaic Cells (Galvanic Cells): These cells convert chemical energy into electrical energy through spontaneous redox reactions. The negative ΔG indicates a spontaneous process, and the negative E⁰cell signifies that the cell reaction has a positive standard cell potential, favoring product formation.
Electrolytic Cells: These cells use electrical energy to drive non-spontaneous redox reactions. The positive ΔG indicates a non-spontaneous process, and the positive E⁰cell signifies that the cell reaction has a negative standard cell potential, requiring external energy input for the reaction to occur.
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