Cell potentials changing

[006248274]

How does the standard electrode potential of a cell change with temperature, concentration, or pressure(for gases)?

[MafruhaR]

The standard electrode potential of a cell can vary with temperature, concentration, and pressure. Generally, higher temperatures tend to increase the standard electrode potential, while changes in concentration and pressure can influence it through shifts in reaction equilibrium. However, the specific effects depend on the particular redox system and the nature of the reactants involved.

[Meylin 1J]

The standard electrode potential of a cell is the measure of the tendency of a half-cell reaction to occur at standard conditions, which include a temperature of 25°C (298 K), a concentration of 1 M for solutions, and a pressure of 1 atm for gases.. For temperature...the standard electrode potential of a cell generally changes according to the Van't Hoff equation:
DetalEnot=DetlaHnot/nF

For concentration you use the Nernst equation and for pressure, you take into consideration the equilibrium constant K and the reaction quotient Q

[705903057]

Changes in temperature, concentration, and pressure can all impact the standard electrode potential of a cell. Generally, the potential increases with temperature, while changes in concentration and pressure influence it through the Nernst equation and the ideal gas law, respectively.