ABSTRACT
The main objective of this chapter is to introduce students to an important electrochemical phenomenon, conductance (resistance), as well as asigni†cant property of amaterial, conductivity (resistivity). The electrolyte conductivity origin, measurements,and interpretation are considered. Difference between conductances due to direct current (dc) and alternating current (ac) is discussed. Some examples with conductivity of aqueous solutions are given. It is explanted that the ef†ciency of electrochemical energy conversion systems can signi†cantly depend on conductance of its components.
