Question

 Write the Ilkovic equation and mention the meaning of each of the terms used in it. 

22 Aug 2025
Answer :
Word Count : 510
The Ilkovic equation is one of the most important relationships in polarography, a branch of electro-analytical chemistry. It describes the diffusion current observed at a dropping mercury electrode (DME) during the electrolysis of an electroactive species. The equation provides a quantitative connection between the diffusion current and various physical and chemical parameters of the system under investigation. The Ilkovic equation is expressed as $i_d = 607 \, n \, D^{1/2} \, m^{2/3} \, t^{1/6} \, C$ where each symbol represents a well-defined parameter influencing the diffusion current. The term $i_d$ stands for the diffusion current in microamperes, which is the steady-state current produced at the DME due to the reduction or oxidation of the analyte species. This current is limited by the rate of diffusion of the ________ _______ ________ ____ _______ _______ _____ _______ _______.
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