Significant Structure Theory of Physical Adsorption
- 1 July 1964
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 41 (1) , 68-73
- https://doi.org/10.1063/1.1725650
Abstract
The significant structure theory of liquids has been modified to describe the physical adsorption of gases on homogeneous solids. Equations have been derived for the isotherm, the isosteric heat, and the critical properties. Good agreement with experiment is obtained for the systems Ar and Kr on graphite. The lack of mathematical rigor in the foundations of the significant structure theory is compensated for to a certain extent by its good results and its arithmetical and conceptual simplicity. Its departure from a rigorous foundation, however, makes it difficult to make improvements or to understand anomalies. The third‐order dispersion energy correction for molecules adsorbed on a solid as derived by Sinanoğlu and Pitzer was used to determine the two‐dimensional lattice energy and the success of the present theory in predicting the heats of adsorption and the critical temperature is a measure of the validity of their work.Keywords
This publication has 21 references indexed in Scilit:
- On physical adsorption XVI. The physical interaction of H 2 , D 2 , CH 4 , and CD 4 with graphiteProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962
- The Statistical Mechanics of Chemical ProcessesAnnual Review of Physical Chemistry, 1961
- SIGNIFICANT STRUCTURES IN LIQUIDS, IV. LIQUID CHLORINEProceedings of the National Academy of Sciences, 1960
- SIGNIFICANT STRUCTURES IN LIQUIDS, III. PARTITION FUNCTION FOR FUSED SALTSProceedings of the National Academy of Sciences, 1960
- PARTITION FUNCTIONS FOR NORMAL LIQUIDS AND MOLTEN SALTSAnnals of the New York Academy of Sciences, 1960
- SIGNIFICANT STRUCTURES IN LIQUIDS. IIProceedings of the National Academy of Sciences, 1959
- SIGNIFICANT STRUCTURES IN THE LIQUID STATE. IProceedings of the National Academy of Sciences, 1958
- On physical adsorption: IX. Sub-critical and subpracritical adsorption isotherms for krypton monolayers on graphitized carbon blackJournal of Colloid Science, 1955
- Critical phenomena in gases - IProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937
- The interaction of atoms and molecules with solid surfaces XII—Critical phenomena in a two-dimensional gasProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937