Galvanic Cells

[Leah Savage 2F]

Do galvanic cells always have a positive potential difference? If we calculate a negative potential difference, do we need to switch the cathode and anode to get a positive potential difference, even if it means changing the cell diagram?

[Kaileigh Yang 2I]

Yes, galvanic cells always have a positive potential difference. Because there are only two ways to combine the two, if one way makes it negative, flip one of them for a positive output.

[Morgan Baxter 1E]

Yes, this is the definition of a galvanic cell. They convert things from chemical energy to electrical energy. The cell potential needs to be positive. An example of a cell that has a negative cell potential is an electrolytic cell.