Potential Step, Reversible Case Chrono-amperometry

1 Potential Step, Reversible Case (Chrono-amperometry) 

The initial conditions for this and all other cases to be discussed below are as follows  

In words, these equations state that the concentrations of both reactant and product are uniform everywhere in solution at t = 0 (i.e., before we have applied 

The next two equations arise from the condition of infinity. They are written as follows  

as we have shown, infinity is less than 0.3 cm away during diffusion-controlled mass-transport processes, these conditions generally apply, except when a conscious effort is made to place the working and counter electrodes very close to each other, as in thin-layer cells. 

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