Nernst equation. Origin of EMF of a galvanic cell. Polarizable and non-polarizable electrodes, the electrocapillary curve, null point of metals and its determination. Thermodynamics of electrical double layer, Lipmann equation, measurement of surface excess. Models for the electrical double layer. Electrode kinetics. The concept of over potential. Electrochemical reactions under mass transfer control, chronopotentiometry, voltammetry and polarography. Electrochemical reactions under charge transfer control, general ized Butler Volmer equation, determination of kinetic parameters. Mechanism and electrocatalysis of hydrogen and oxygen evolution reactions.