Galvanic vs. Electrolytic Cell

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Natalie LeRaybaud 1G
Posts: 54
Joined: Thu Jul 13, 2017 3:00 am

Galvanic vs. Electrolytic Cell

Postby Natalie LeRaybaud 1G » Thu Feb 22, 2018 10:58 am

What is the main difference between a galvanic and electrolytic cell?

Harrison Wang 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: Galvanic vs. Electrolytic Cell

Postby Harrison Wang 1H » Thu Feb 22, 2018 11:13 am

A Galvanic cell converts chemical energy into electrical energy. An electrolytic cell converts electrical energy into chemical energy. Electrolysis is used to drive an oxidation-reduction reaction in a direction in which it does not occur spontaneously.

Posts: 32
Joined: Sat Jul 22, 2017 3:00 am

Re: Galvanic vs. Electrolytic Cell

Postby torieoishi1A » Thu Feb 22, 2018 3:08 pm

We mainly learned about Galvanic cells: they are cells in which chemical energy released by a spontaneous redox reaction are converted to electrical energy. For the overall cell reaction, deltaG should be less than 0 to indicate that the reaction is spontaneous.
In an electrolytic cell, electrical energy is used to drive nonspontanoues redox reactions. In this case, deltaG should be positive due to the nonspontaneous reaction.

Katie Lam 1B
Posts: 52
Joined: Fri Sep 29, 2017 7:06 am

Re: Galvanic vs. Electrolytic Cell

Postby Katie Lam 1B » Thu Feb 22, 2018 6:33 pm

Galvanic cells have spontaneous reactions, while electrolytic cells have nonspontaneous reactions.

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