3410.     ---------------.  [TOMPKINS, F. C.]  Physical Adsorption on Nonuniform Surfaces.  Trans. Faraday Soc., vol. 46, 1950, pp. 569-580; Chem. Abs., vol. 45, 1951, p. 18.

        Nonuniformity of an adsorbent surface affects the isotherm obtained in physical adsorption both for localized and nonlocalized monolayers.  Subject to the approximation that the internal partition function of the adsorbed molecule is independent of the adsorption potential of each site, it is shown that the log pressure versus log amount adsorbed is a linear plot, whether the adsorbed film is regarded as a polyphase or a monophase system.

        ----------.  See abs. 636.