Question

Fundamental difference between an electrolytic cell and the galvanic cell is that in electrolytic cell ____________.

Options

• the free energy decreases as work is done by the system on the outside world

• in electrolytic cell the free energy is supplied in the form of mechanical work done by the system on the outside world

• the free energy is supplied in the form of mechanical work done on the system by the outside world

• the free energy is supplied in the form of electrical work done on the system by the outside world

Answer 1

Fundamental difference between an electrolytic cell and the galvanic cell is that in electrolytic cell the free energy is supplied in the form of electrical work done on the system by the outside world.

Explanation:

In an electrolytic cell, electrical energy is converted into chemical energy. Here the electrical energy is used to drive redox reactions which have positive free energy and are non-spontaneous.