Double layer models: Bockris Helmholtz

Calculate the capacity of the Helmholtz layer per unit area for an interface of mercury in contact with a 0.0 XM NaF electrolyte. Model the value of the double layer thickness assuming a two-state water model, a positive charge on the electrode, and a local dielectric constant of six. (Bockris)... 

Lastly, in 1963 John O Mara Bockris (1923-2013) together with M. Devantant and K. Muller developed a model which takes into consideration the effect of solvent (H O dipoles), of its ions and pH value of the solution on the charge of the diffusion layer. So, the modern concept was formed of the structure of double electric layer, according to which are distinguished three consecutively connected capacitors slip plane, Helmholtz plane and the interface plane (Figure 2.10). 

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