Electrochemistry is a branch of chemistry, which deals with chemical applications of electricity. Electrochemistry deals with the chemical reactions produced by passing electric current through an electrolyte or the production of electric current through chemical reactions.
A cell is a device consisting of two half cell. Each half cell contains an electrode dipped in an electrolytic solution. The two half cells are connected through one wire.
Two types of cells:
Electrochemical cells (or) voltaic cells (or) galvanic cells
A cell in which electrical energy is converted into chemical energy
The anode carries the positive charge
The cathode carries the negative charge
Amount of the electricity passed during electrolysis is measured by calumniator.
A cell in which chemical energy is converted into electrical energy
The anode carries negative charge
The cathode carries positive charge
The e.m.f produced in the cell is measured by potentiometer
The tendency of an electrode to lose electrons is called the oxidation potential, and the tendency of an electrode to gain electrons is called the reduction potential.
Factors affecting electrode potential:
The nature of the metal
The concentration of metals ions in solutions