Question

The redox reaction in an electrochemical cell is spontaneous or nonspontaneous.

Answer 1

Electrolytic cell:

• An electrolytic cell is a device that is used to convert electrical energy into chemical energy.
• In the electrolytic cell, the redox reaction is not spontaneous and electrical energy has to be supplied to initiate the reaction.
• Both the electrodes are placed in the same container in the solution of molten electrolyte.
• Here, the anode is positive and the cathode is the negative electrode. The reaction at the anode is oxidation and that at the cathode is reduction.
• The external battery supplies the electrons. They enter through the cathode and come out through the anode.