## Galvanic Cells

Andrew F 2L
Posts: 103
Joined: Sat Aug 17, 2019 12:17 am

### Galvanic Cells

What is important to understand about galvanic cells? I am confused as to the purpose of what we are learning about electricity as it relates to energy and free energy. Could someone help me understand this? Thank you!

JamieVu_2C
Posts: 108
Joined: Thu Jul 25, 2019 12:16 am

### Re: Galvanic Cells

When you're relating free energy to the cell potential, as given by $\Delta G=-nFE_{cell}$, the cell potential (E) comes from the galvanic cell. So, you'd need to calculate the cell potential from the galvanic cell and its two electrodes – the anode and the cathode. Using the two electrodes, you can find the half reactions to find the cell potential of the galvanic cell.

Posts: 52
Joined: Thu Jul 11, 2019 12:16 am

### Re: Galvanic Cells

The importance of a galvanic cell is that charge is being transferred from one species to another, or from anode to cathode and as electrons are transferred from one species to another there is a buildup of charge and a voltage associated with that. Therefore electricity is generated when electrons are transferred from one species to the next and allows for the transfer of energy.

Charysa Santos 4G
Posts: 107
Joined: Wed Sep 18, 2019 12:21 am

### Re: Galvanic Cells

I found that this Khan Academy video may be helpful/relevant in answering your question: https://www.khanacademy.org/science/che ... ree-energy

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