Diffusion coefficient is an important mass transport related parameter governing an electrode reaction. It may be determined using transient voltammetry. An oxidation peak current of 2.08 × 10-5 A was obtained from a voltammetric experiment undertaken at 25 oC in an aqueous electrolyte medium containing 2.0 mM Red and 0.1 M KCl using a 3.0 mm diameter electrode at a scan rate of 100 mV s-1. Calculate the diffusion coefficient (D) for Red using the Randles-Sevčik equation (unit cm2 s-1).

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Convective Mass Transfer between Phases

Mass transfer means the transport or movement of mass using streams, phases, components, and so on from one location to another.