What is the current density at an electrode

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A typical exchange current density, that for H+ discharge at platinum,is 0.79 mA cm-2 at 25°C. What is the current density at an electrode when itsoverpotential is

(a) 10 mV,

(b) 100 mV,

(c) -5.0 V? Take a = 0.5.

Reference no: EM131375480

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