Question-09 Select false statement from the following regarding electrochemical cell.
(A) Standard cell potential of electro chemical cell is an intensive property.
(B) Electrode potential depends on concentration of salt solution in contact with electrode.
(C) Standard free energy change of cell is an intensive property.
(D) Electrical work done in galvanic cell is equal to decrease in Gibb’s energy.
Answer : (C)
Explanation:
Standard free energy change (ΔG°) of cell is an extensive property since its value depends on the amount of substance. This can be represented as, ΔG° = -nFE^\circ_{cell}
∴ ΔG° depends on n.