Ideally, electrode potential, " E ", follows the Nernst equation, which, for the hydrogen ion can be written as
22.
In dilute solutions, the Nernst equation can be expressed directly in the terms of concentrations ( since activity coefficients are close to unity ).
23.
In order to draw the position of the lines with the Nernst equation, the activity of the chemical species at equilibrium must be defined.
24.
At 25 �C with pH 7 ( [ H + ] = 1.0 M ), the potential is unchanged based on the Nernst equation.
25.
The Nernst equation below shows the dependence of the potential of the copper-copper ( II ) sulfate electrode on the activity or concentration copper-ions:
26.
His work was continued by Walther Nernst, who derived the Nernst equation and described ionic conduction in heterovalently doped zirconia, which he used in his Nernst lamp.
27.
This is physically meaningless because, under such conditions, the exchange current density becomes very low, and there is no thermodynamic equilibrium necessary for Nernst equation to hold.
28.
Fundamental contributions were later made by Walther Nernst, who derived the Nernst equation and detected ionic conduction in heterovalently doped zirconia, which he applied in his Nernst lamp.
29.
When a cell has significant permeabilities to more than one ion, the cell potential can be calculated from the Goldman-Hodgkin-Katz equation rather than the Nernst equation.
30.
She was able to explain why solutions of radioactive iodine were unstable, and determine the concentration at which species would be at equilibrium values, by applying the Nernst equation effect.
