In electrochemistry, we study reactions which produce electricity and other
chemical reactions which take place with the help of electricity. The first type
of reactions occur spontaneously but second type of reactions are forced to
occur and work is done on the system.
Electrolytes conduct electricity in their aqueous solution or in molten state. The
electrolytic conductance depends upon concentration of electrolyte, nature of
electrolyte, etc.
Electro-chemistry: The branch of chemistry which deals with relationship
between chemical energy and electrical energy and how one can be converted
into another is known as electrochemistry.