Now that we have observed various electrochemical processes, we need a convention to describe each voltaic cell.
20.3 Silver-Copper Voltaic Cell Part 1
20.3 Silver-Copper Voltaic Cell Part 2
20.3 Silver-Iron Voltaic Cell
When you describe voltaic cells, be sure to keep a few things in mind:
*When a half reaction is reversed, the sign of the standard cell potential is reversed.
*The standard cell potential is an intensive property.
*To run spontaneously, the standard cell potential must be positive.
*A chemically inert conductor is required if none of the substances participating in the half reaction is a conducting solid.
20.3 Voltaic Cells