Electromotive Force (E°): The measure of the tendency for an electrochemical cell to undergo redox reactions. It indicates whether a cell is capable of producing an electric current.
Coulomb (C): The SI unit for electric charge, equal to one ampere-second. It measures the quantity of electric charge flowing through a circuit or involved in a chemical reaction.
Electrochemical Cell: A device that converts chemical energy into electrical energy through redox reactions. It consists of two electrodes connected by an electrolyte solution or salt bridge.