Galvanic/Voltaic Cells

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Galvanic/Voltaic Cells

Postby AlyssaPeckham1A » Sat Mar 17, 2018 11:04 pm

could someone expand on the concepts behind galvanic/voltaic cells?

Curtis Wong 2D
Posts: 62
Joined: Sat Jul 22, 2017 3:00 am

Re: Galvanic/Voltaic Cells

Postby Curtis Wong 2D » Sat Mar 17, 2018 11:08 pm

Galvanic cells consist of an anode and a cathode that would produce a spontaneous reaction between them. In order for there to be a spontaneous reaction, the gibbs free energy must be negative, so that means that the standard cell potential must be positive as G=-nFE. Knowing this, this means that our combination of anode and cathodes must lead to the greatest positive sum.

Katelyn B 2E
Posts: 29
Joined: Fri Sep 29, 2017 7:05 am

Re: Galvanic/Voltaic Cells

Postby Katelyn B 2E » Sun Mar 18, 2018 12:52 am

A galvanic or voltaic cell is a cell that derives electrical energy from spontaneous redox reactions taking place within the cell. The anode is constantly passing electrons to the cathode, usually via an electrical wire, while a porous disk or salt bridge maintains the charges of the aqueous solutions on both sides of the cell so that the redox reactions can continue.

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