Explain factors affecting the magnitude of the electrode potential difference

Factors affecting the magnitude of the electrode potential difference

1. Concentration of metal ions already in solution. Since the ionization equation (1) is a reversible reaction, the higher the concentration of metal ions in solution, the further to the left will be the state of equilibrium and hence the smaller the electrode potential.
2. Increasing temperature increases the ionization of metal atoms and thus increases the electrode potential.
3. Pressure: applicable to gas systems, the higher the pressure the higher the electrode potential because increased pressure increases the gas concentration at gas –liquid junction.
4. Position of metal in electrochemical series.

Metals above hydrogen in electrochemical series, have ionization reactions that lie more to the right than left, thus, the metal tends to be negatively charged with respect to their solutions. Thus have negative electrode potentials.

Please Subscribe to promote this website. Subscription is free

Share with a friend

Your comment is valuable

Thank you so much