Hill-Everett model

Thermo(fynamics of adsorption equilibrium in the Hill-Everett model... 

The fundamental references in gas-solid adsorption are the works by Fowler and Guggenheim [12], Everett [13], and Hill [14,15], and the books by Young and Crowell [16], de Boer [17], Kiselev [4], and more recently by Ruthven [18] and T6th [19], who gives a clear, logical, and simple presentation of this topic. We present first a few theoretical results obtained in the study of gas-sohd adsorption, results that have been extended semiempirically to liquid-solid adsorption [18]. Then, we describe the various isotherm models that have been used in the study of retention mechanisms in liquid chromatography. 

Unlike the previous model, where the surface acts through the surface n of its species. Hill and Everett describe surface effects using a physical parameter, namely the force field of the sohd. 

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