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What is a key difference between an electrolytic cell and a voltaic cell?

Cynthia Baker

in Physics

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Kaitlin Dean on November 5, 2018

The main difference is the presence or absence of an external source of energy. In an electrolytic cell, one does not need an external source of energy, like a battery while in a voltaic cell the reaction occurs simultaneously, with or without help. The other major difference is that in an electrolytic cell, the flow of electrons is from positive(cathode) negative(anode). In a voltaic cell the flow of electrons is negative(anode) to the positive(cathode).


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