?Significant evolution or deposition occurs in electrolysis only if the overpotential
Chapter 19, Problem E19D.3(a)(choose chapter or problem)
Significant evolution or deposition occurs in electrolysis only if the overpotential exceeds about 0.6 V. To illustrate this criterion calculate the effect that increasing the overpotential from 0.40 V to 0.60 V has on the current density in the electrolysis of 1.0 m NaOH(aq), which is \(1.0 \mathrm{\ mA} \mathrm{\ cm}^{-2}\) at 0.4 V and \(25^{\circ} \mathrm{C}\). Take \(\alpha=0.5\). Hint: Assume that the current is entirely anodic.
Text Transcription:
1.0 mA cm^-2
25^circ C
alpha=0.5
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