Metallurgical Engineering > GATE 2020 > Corrosion
Iron is corroding in fresh water which has dissolved oxygen concentration of 15 mM. The anodic current density at an overpotential of 120 mV is _______ A⋅cm-2 (round off to three decimal places).
Given:
1. Anodic Tafel slope is 0.06 V.
2. Diffusion coefficient of oxygen is 2.42 × 10-5 cm2⋅s-1.
3. Diffusion layer thickness is 0.06 cm.
Given:
1. Anodic Tafel slope is 0.06 V.
2. Diffusion coefficient of oxygen is 2.42 × 10-5 cm2⋅s-1.
3. Diffusion layer thickness is 0.06 cm.
Correct : 0.214
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