The behaviour of fluids of Quasi-Spherical molecules. II. High density gases and liquids

1954 ◽  
Vol 7 (1) ◽  
pp. 18 ◽  
Author(s):  
SD Hamann ◽  
JA Lambert
Keyword(s):  
High Density ◽  
Corresponding States ◽  
Inert Gases ◽  
Dense Fluids ◽  
Cell Method ◽  
Lennard Jones ◽  
Law Of Corresponding States

Lennard-Jones and Devonshire's (1937) cell method has been used to compute some properties of dense fluids composed of effectively spherical molecules interacting according to the potential U( R ) = A/R28 - B/R7 The results are quite different from those for the more usual (12,6) potential and they explain the failure of such substances as CI4, SF6, . . . , to obey the same law of corresponding states as the inert gases. In particular the different entropies of evaporation (Trouton constants) of the two classes of materials are given correctly by the theory.

THEORY OF COLD NEUTRON SCATTERING BY HOMONUCLEAR DIATOMIC LIQUIDS: I. FREE ROTATION

1966 ◽  
Vol 44 (6) ◽  
pp. 1279-1297 ◽  
Author(s):  
V. F. Sears
Keyword(s):  
Neutron Scattering ◽  
Cross Section ◽  
Born Approximation ◽  
Cold Neutron ◽  
Intermolecular Forces ◽  
Inert Gases ◽  
Jones Potential ◽  
Lennard Jones ◽  
Law Of Corresponding States ◽  
Homonuclear Diatomic Molecules

The cold neutron scattering cross section for a system of homonuclear diatomic molecules with arbitrary nuclear spin and an arbitrary ortho–para ratio is calculated in first Born approximation, assuming that the molecular rotation is unhindered. The cross section is expressed in the form of an expansion in terms of the angular momentum transfer. This expansion is shown to be rapidly convergent for all the permanent homonuclear diatomic liquids. To the extent that the intermolecular forces are described by an isotropic Lennard-Jones potential, the terms in the expansion can be calculated with the help of the law of corresponding states and the observed scattering functions for the condensed inert gases. The problem of neutron diffraction by homonuclear diatomic liquids is also investigated.

scholarly journals Anharmonic Self-Consistent Theory of Crystals. II. The 2d and 3d Quartic Crystal Models

1994 ◽  
Vol 49 (6) ◽  
pp. 663-670
Author(s):  
S. Sh. Soulayman ◽  
C. Ch. Marti ◽  
Ch. Ch. Guilpin
Keyword(s):  
Helmholtz Free Energy ◽  
Equations Of State ◽  
Three Dimensional ◽  
Inert Gases ◽  
Thermoelastic Properties ◽  
Consistent Theory ◽  
Jones Potential ◽  
Lennard Jones ◽  
2D And 3D ◽  
Strong Anharmonicity

Abstract In this paper we apply the method developed in part I for describing the crystalline state of two and three dimensional inert gases. For strong anharmonicity of fourth order, the equations of state of these gases are obtained. This way we calculate the thermoelastic properties of two and three dimensional argon, krypton and xenon using the Lennard-Jones potential. The corrections to the Helmholtz free energy and thermodynamic properties due to quantum effects are considered. The results are compared with the available experimental data.

Sound velocity in liquid CCl2 F2 and the law of corresponding states

AIChE Journal ◽  
1972 ◽  
Vol 18 (2) ◽  
pp. 430-432 ◽  
Author(s):  
Gregory R. Poole ◽  
Ronald A. Aziz
Keyword(s):  
Sound Velocity ◽  
Corresponding States ◽  
Law Of Corresponding States ◽  
The Law

Simplified equations for mixing properties of molten alkali halides based on the law of corresponding states

1993 ◽  
Vol 32 (11) ◽  
pp. 2873-2880 ◽  
Author(s):  
Yutaka Tada ◽  
Setsuro Hiraoka ◽  
Yasuhiko Katsumura ◽  
Chan Young Park
Keyword(s):  
Alkali Halides ◽  
Corresponding States ◽  
Mixing Properties ◽  
Law Of Corresponding States ◽  
The Law
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