Galvanic Cells

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Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Galvanic Cells

Postby Sophia Dinh 1D » Sun Mar 01, 2020 2:11 pm

Is the E of galvanic cells always positive?

KeyaV1C
Posts: 103
Joined: Sat Aug 17, 2019 12:17 am
Been upvoted: 1 time

Re: Galvanic Cells

Postby KeyaV1C » Sun Mar 01, 2020 2:13 pm

The cell potential of a galvanic cell is always positive

Cavalli_1H
Posts: 92
Joined: Thu Sep 19, 2019 12:15 am

Re: Galvanic Cells

Postby Cavalli_1H » Sun Mar 01, 2020 2:16 pm

yes, for galvanic cells, which have to be spontaneous in order for it to run, E has to be positive

TimVintsDis4L
Posts: 104
Joined: Sat Aug 17, 2019 12:17 am

Re: Galvanic Cells

Postby TimVintsDis4L » Sun Mar 01, 2020 2:20 pm

So essentially there are 2 sets of correlations, if that's a way to put it, but you can remember it as the following.

Galvanic Cell = - = Spontaneous = + E knot = K > 1

Electrolytic Cell = = non spontaneous = - E knot = K < 1

rabiasumar2E
Posts: 108
Joined: Thu Jul 11, 2019 12:15 am

Re: Galvanic Cells

Postby rabiasumar2E » Sun Mar 01, 2020 3:25 pm

Yes! Galvanic cells are spontaneous and therefore, the E must be positive.

Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

Re: Galvanic Cells

Postby Jasmine W 1K » Sun Mar 01, 2020 4:53 pm

Galvanic cells are spontaneous, so E has to be positive.

Nuoya Jiang
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

Re: Galvanic Cells

Postby Nuoya Jiang » Sun Mar 01, 2020 4:55 pm

Yes, it is. Because it is spontaneous, so delta G is negative for it.


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