Question: Q1: The exchange current density for a hydrogen-evolution reaction on steel (d = 7.87 g/em) is 810 A/cm. The anodic and cathodic Tafel slopes

Q1: The exchange current density for a hydrogen-evolution reaction on steel (d

Q1: The exchange current density for a hydrogen-evolution reaction on steel (d = 7.87 g/em) is 810 A/cm. The anodic and cathodic Tafel slopes are b, 0.2 V & b. = -0.2 V. The reaction proceed at overvoltage n = - 0.05 V versus SHE at 25 C. The electrode surface area is 2 cm and a = 0.8. Calculate the polarization resistance, the corrosion current density & the corrosion rate in mpy?

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