electrolytic cell

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Jose Torres
Posts: 31
Joined: Fri Sep 28, 2018 12:22 am

electrolytic cell

Postby Jose Torres » Sun Mar 03, 2019 11:53 pm

In an electrolytic cell, the anode is labeled + (positive) and the anode is labeled - (negative) which is the opposite compared to the galvanic cell. Why is that so?

Chris Dis3L
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

Re: electrolytic cell

Postby Chris Dis3L » Sun Mar 03, 2019 11:57 pm

In an electrolytic cell, electrons are forced via a voltage to be reduced at the cathode. In this case the the cathode is negative as a force is required to push the electrons.

Arianna Ko 2E
Posts: 33
Joined: Fri Sep 28, 2018 12:20 am

Re: electrolytic cell

Postby Arianna Ko 2E » Mon Mar 04, 2019 5:11 pm

You will have a negative Ecell for an electrolytic cell because electrolysis is when you use an electric current in an electrolytic cell to drive a NON-spontaneous redox reaction.
-Ecell denotes a non-spontaneous reaction.

Douglas Nguyen 2J
Posts: 71
Joined: Fri Sep 28, 2018 12:15 am

Re: electrolytic cell

Postby Douglas Nguyen 2J » Mon Mar 04, 2019 5:39 pm

In an eletrolytic cell, you're converting electrical energy into chemical energy, and in a galvanic cell, you're converting chemical energy into electrical energy!

Elisa Bass 4L
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

Re: electrolytic cell

Postby Elisa Bass 4L » Mon Mar 04, 2019 6:49 pm

This notation is just a technicality because in an electrolytic cell, the electrons in the anode are being drawn towards the positive external charge of what is supplying energy to the chemical reaction. Meanwhile, electrons are being pushed towards the cathode on the other side, so they write it as negative to indicate this.


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