abstract:In electrochemistry, the electrochemical potential, \bar{\mu}, sometimes abbreviated to ECP, is a thermodynamic measure that combines the concepts of energy stored in the form of chemical potential and electrostatics. Electrochemical potential is expressed in the unit of J/mol.
Whereascorrosion of steel occursdue to a drop in activation potential caused by sodium chloride and to the effect of anode polarizationproduced by electro-chemical factors.