^Electrolysis

Electrolysis

• The process of dissociating a liquid into ions when electric current is passed through them is called electrolysis or conductors of second kind. The arrangement used to study electrolysis is called a Voltameter. It contains a vessel, two electrodes, a solution called electrolyte & dc power supply.
• Current inside electrolytes is due to motion of both + ve & – ve ions. i.e. I = I₊ + I_–  also I₊ ≠ I_–. 
• Electrolysis obey Ohm’s law for small currents if V _applied > V _back.
• Conductivity of electrolytes is 10⁵  to 10⁶ times smaller than that of metallic conductors.