Estimate the magnitude of the corrosion current for a patch of zinc of area 0.25 cm 2
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Estimate the magnitude of the corrosion current for a patch of zinc of area 0.25 cm2 in contact with a similar area of iron in an aqueous environment at 25°C. Take the exchange current densities as 1 µA cm−2 and the local ion concentrations as 1 µmol dm−3.
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