Which one of the following statements is correct?

Options

A. In an electrochemical cell, the free energy of the system decreases while in an electrolytic cell, it increases
B. In an electrolytic cell, the free energy of the system decreases while in an electrochemical cell it increase
C. Free energy increase in both
D. Free energy decreases in both.

Answer

A

Explanation

In an electrochemical cell, the cell reaction is spontan eous and as such free energy of the system decreaes, on the other hand, in electrolytic cell, the cell reaction is non-spontaneous and as such free energy of the system increases.