PROBLEMS TO SOLVE

1. Prove that relative surface excesses are independent of the position of the dividing surface used in the reference system chosen for the thermodynamic treatment of the interface.

2. Why do we view adsorbed neutral species as being intimately bound to the electrode surface, rather than being collected in the diffuse layer?

3. Calculate the charge density on the metal as a function of potential and then the capacitance as a function of potential from the electrocapillary data of Table 1.

TABLE 1. Variation of Interfacial Tension of a Mercury - l.0 M CsCI Interface

with Potential Difference

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