AMPP Corrosion Technologist Practice Questions - AMPP Corrosion Technologist Certification Exam

In mixed-potential theory, the corrosion potential (Ecorr) of a freely corroding metal is:

The potential at which the sum of all anodic current densities equals the sum of all cathodic current densities The thermodynamic reversible potential of the most noble half-reaction Always equal to the hydrogen electrode potential The average of the open-circuit potentials of anodic and cathodic reactants

Correct Answer:

The potential at which the sum of all anodic current densities equals the sum of all cathodic current densities

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