In this package:
- the concepts of equilibrium potential and their measurement are introduced.
- electrochemical half-cells are defined and treatment of electrochemical equations demonstrated.
- the physical and chemical processes which lead to aqueous corrosion are examined.
- the Nernst Equation has been derived and the way in which it links measured potentials at various conditions with standard equilibrium potentials is discussed.
- the way in which some electrochemical reactions have equilibrium potentials that vary as a function of pH is considered and the concept and derivation of a Pourbaix diagram introduced.
- through the use of specific examples, the characteristics of Pourbaix diagrams and their uses are examined. The stability of water is demonstrated through the use of the Pourbaix diagram.
- cathodic and anodic reaction lines on Pourbaix diagrams are discussed and the way in which a point on the diagram corresponds to physical corrosion examined.
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