Here are some key terms that you should familiarize yourself with before you begin exploring the wonderful world of electrochemistry:
Electrochemistry- The study of the interchange of chemical and electrical energy.
Oxidation- A loss of electrons.
Reduction- A gain of electrons.
Salt Bridge/Porous Disk- A U-tube containing an electrolyte/a disk in a tube that connects two compartments of a galvanic cell. Both allow ions to flow in a galvanic cell.
Galvanic Cell- A device in which chemical energy from a spontaneous oxidation-reduction reaction is changed to electrical energy that can be used to do work
Anode- The electrode in a galvanic cell where oxidation occurs.
Cathode- The electrode in a galvanic cell where reduction occurs.
Cell Potential- The driving force which pulls electrons from the reducing agent in one compartment to the oxidizing agent in the other.
Volt- (voltmeter) The unit of electrical potential defined as one joule of work per coulomb of charge transferred. (The device which measures cell potential by drawing electrical current through a known resistance.
Standard Reduction Potentials:
Concentration Cell- A galvanic cell in which both compartments contain the same components, but at different concentrations.
Nernst Equation- The equation relating electric potential of an electrochemical cell to the concentrations of the cell's components.
also written as: