Electrolysis and Cell Comparisons

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7 Terms

1
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What is electrolysis?

Using electric energy to force a non-spontaneous redox reaction.

2
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What is an electrolytic cell?

A cell where a non-spontaneous reaction occurs by adding electricity.

3
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Which is spontaneous? (Galvanic vs Electrolytic(

Galvanic = spontaneous, electrolytic = non-spontaneous.

4
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Where do redox reactions occur?

In both types:

Anode = oxidation

Cathode = reduction

5
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Electrode polarity? (comparing the two)

Galvanic: anode −, cathode +

Electrolytic: anode +, cathode −

6
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Direction of electron flow?

Always anode → cathode.

7
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Direction of ion movement?

Anions → anode

Cations → cathode

(same in both types)