Question

Explain the terms limiting current, migration current, diffusion current, residual current and half wave potential.

06 Sep 2025
Answer :
Word Count : 266
In electro-analytical chemistry, the term limiting current refers to the maximum current observed in an electrochemical system under conditions where the rate of the electrochemical reaction is controlled by the rate of mass transport of the analyte to the electrode surface. Limiting current is often observed in polarography and voltammetry, indicating that further increase in applied potential does not increase the current because the concentration of ____ ___ ______ ______ _______ ___ ____.
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