Last Updated: 2/28/19 by Support
Potential is a measure of the energy required to drive current
between two electrodes.
In an electrochemical system,
potential may be either positive or negative, depending on the configuration. A positive potential indicates a spontaneous (also called galvanic) process, where current can be drawn from the system as redox
reactions occur. A negative potential indicates a non-spontaneous (also called electrolytic) process, where current must be applied to the system for redox reactions to occur.