Write the cell reactions which occur in lead storage battery (i) when the battery is in use and (ii) when the battery is on charging.

(i) The cell reactions during the use (discharge) of lead storage battery are:

2781 Views

Calculate the emf of the cell Zn/Zn²⁺(0.1 M) || Cd²⁺ (0.01 M) | Cd at 298 k. (given)
E°_Zn²⁺/Zn = – 0.76 V and E°_Cd²⁺/Cd = – 0.40 V).

Prove that the free energy (ΔG) and the emf of an electro-chemical cell are related by
ΔG = – nFE₀.

The following curve is obtained when molar conductivity λ_m (y-axis) is plotted against the square root of concentration C^1/2 (x-axis) for two electrolytes A and B.
(a) What can you about the nature of the two electrolytes A and B.
(b) How do you account for the increase in molar conductivity λ_m for the electrolytes A and B on dilution.

How is the standard free energy change related to
(i) emf of a galvanic cell related to the reaction.
(ii) equilibrium constant of the reaction in equilibrium state?

Electrochemistry

Write the cell reactions which occur in lead storage battery (i) when the battery is in use and (ii) when the battery is on charging.