scholarly journals Adsorption of gas mixtures on heterogeneous solid surfaces

1978 ◽  
Vol 256 (7) ◽  
pp. 690-695 ◽  
Author(s):  
M. Jaroniec ◽  
J. Tóth
Keyword(s):  
Gas Mixtures ◽  
Solid Surfaces ◽  
Heterogeneous Solid

scholarly journals Statistical Verification of Parameters Describing Liquid Adsorption on Heterogeneous Solid Surfaces

1999 ◽  
Vol 82 (6) ◽  
pp. 1495-1504 ◽  
Author(s):  
Przemysław Podkościelny ◽  
Andrzej Dąbrowski
Keyword(s):  
Distribution Function ◽  
Solid Surfaces ◽  
Surface Phase ◽  
Adsorption Model ◽  
Exponential Equation ◽  
New Approach ◽  
Liquid Adsorption ◽  
Experimental Systems ◽  
Statistical Verification ◽  
Heterogeneous Solid

Abstract A new approach is presented for determining the surface phase capacity and the distribution function in liquid adsorption on heterogeneous solid surfaces. This approach deals with statistical analysis of the errors made by applying the so-called exponential equation of the adsorption isotherm. It is proved that such an analysis, which is suitable for all types of excess experimental isotherms, gives the answer to the dilemma of the reliability of the results obtained by means of the assumed adsorption model. Several experimental systems were analyzed to demonstrate the advantage of our approach.

scholarly journals Phase behavior of light gas mixtures at high pressures

1971 ◽  
Vol 40 ◽  
pp. 363-370 ◽  
Author(s):  
William B. Streett
Keyword(s):  
Phase Behavior ◽  
Structural Model ◽  
High Pressures ◽  
Fluid Layer ◽  
Gas Mixtures ◽  
Solid Surfaces ◽  
Coexisting Phases ◽  
New Hypothesis ◽  
Very High ◽  
Equal Density

If solid surfaces exist beneath the visible clouds of the major planets, they may be expected to exist at depths and pressures at which the component gas mixtures solidify under their own weight. The elucidation of phase behavior in mixtures of light gases at very high pressures is therefore essential to the solution of the problem of deep atmosphere structures in these planets. Available experimental evidence suggests several possible extrapolations of the H2-He phase diagram to high pressures. These have been used to develop a structural model for a H2-He atmosphere. In this model, gravitational separation of coexisting phases results in a layered structure, and it is shown that masses of H2-rich solid can exist in dynamic and thermodynamic equilibrium with a fluid layer of equal density but higher He content. This model forms the basis of a new hypothesis for Jupiter's Red Spot.

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