EVERETT

R. Defay, I. Prigogine, A. Bellemans, and D. H. Everett, Surface Tension and Adsorption, Longmans, Green, London. 1966. 

D. H. Everett, ed.. Specialist Periodical Reports, Vols. 2 and 3, The Chemical Soceity London, 1975, 1979. 

It is not necessary to limit the model to idealized sites Everett [5] has extended the treatment by incorporating surface activity coefficients as corrections to N and N2. The adsorption enthalpy can be calculated from the temperature dependence of the adsorption isotherm [6]. If the solution is taken to be ideal, then... 

Everett and co-workers [141] describe an improved experimental procedure for obtaining FJ quantities. Some of their data are shown in Fig. XI-10. Note the negative region for n at the lower temperatures. More recent but similar data were obtained by Phillips and Wightman [142]. 

Everett [5] found Eq. XI-33 to be obeyed by several systems, for example, that of benzene and cyclohexane on Spheron 6. 

However, a body of thermodynamic treatment has been developed on the basis that the adsorbent is inert and with attention focused entirely on the adsorbate. The abbreviated presentation given here is based on that of Hill (see Refs. 65 and 113) and of Everett [114]. First, we have the defining relationships ... 

D. H. Everett and R. H. Ottewill, eds.. Surface Area Determination, Butterworths, London, 1970. 

D. H. Everett, Proc. 10th Colston Symp., Butterworths, London, 1958, p. 95. 

Brabury S and Everett B 1996 Contrast Techniques In Light Microscopy, Microscopy Handbooks 34 (Oxford BIOS Scientific Publishers)... 

Figure Bl.26.3. The lUPAC classification of adsorption isothemis for gas-solid equilibria (Sing K S W, Everett D H, Haul RAW, Mosoul L, Pierotti R A, Rouguerol J and Siemieiiiewska T 1985 Pure. Appl. Chem. 57 603-19).

W. A. Steele, The Interaction of Gases with Solid Surfaces , p. 222, Pergamon Press, Oxford (1974) K. S. W. Sing in "Colloid Science (ed. D. H. Everett), Vol. 1, p. 1, Specialist Periodical Reports, Chemical Society, London (1973). 

The problem has been discussed in terms of chemical potential by Everett and Haynes, who emphasize that the condition of diffusional equilibrium throughout the adsorbed phase requires that the chemical potential shall be the same at all points within the phase and since, as already noted, the interaction energy varies wtih distance from the wall, the internal pressure must vary in sympathy, so as to enable the chemical potential to remain constant. 

Fig. 3.10 Contributions to the lowering of chemical potential of the condensed liquid in a capillary, arising from adsorption forces (c) and meniscus curvature (Ap). The chemical potential of the free liquid is , and that of the capillary condensed liquid is (= ) z is the distance from the capillary wall. (After Everett. )...

BroekhofF and de Boer have addressed themselves to the same problem, putting forward an analysis based on an expression for the chemical potential of the adsorbed him as a function of its thickness t. The status of the de Boer treatment has been discussed in some detail by Everett and Haynes. ... 

As Everett points out, however, the analogy of a pore as a narrownecked bottle is over-specialized, and in practice a series of interconnected pore spaces rather than discrete bottles is more likely. The progress of capillary condensation and evaporation in pores of this kind (cf. Fig. 3.13) has been discussed by de Boer, and more recently by Everett. ... 

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