Results 91 to 100 of about 7,446,249 (178)

INVESTIGATION OF THE PERTURBED VIRIAL EQUATIONS WITH ARBITRARY TEMPERATURE-DEPENDENT SECOND AND THIRD VIRIAL COEFFICIENTS

open access: yes, 2011
In this paper, the perturbed virial equations of state with temperature-dependent virial coefficients are constructed using the Carnahan–Starling (CS) hard sphere equation as reference. Considering the second virial coefficient, some critical properties
JIANXIANG TIAN
core   +1 more source

S matrix poles and the second virial coefficient

open access: yes, 2002
PTHFor cutoff potentials, a condition which is not a limitation for the calculation of physical systems, the S matrix is meromorphic. It may be expressed in terms of its poles, and then the quantum mechanical second virial coefficient of a neutral gas ...
Baxter, J.   +4 more
core   +1 more source

Second virial coefficient of an interacting anyon gas

open access: yes, 1991
We consider the statistical mechanics of an interacting anyon gas with a repulsive pair potential of the form g/r2. The second virial coefficient is calculated and shown to be a smooth function of the statistical parameter-alpha for g < 0, without the ...
FU, Y. T., Loss, D.
core   +1 more source

How Interactions Affect Many-Body States Distinguishability: A Geometric Viewpoint

open access: yesDynamics
We investigate the information-geometric structure of a self-consistent second-virial approximation with the van der Waals form of the second virial coefficient, using the Fisher information as a generating potential.
Flavia Pennini, Angelo Plastino
doaj   +1 more source

Comparison of Neural Network and Empirical Models for Prediction of Second Virial Coefficients for Gases [PDF]

open access: yes, 2012
In the paper, two tools are used for estimation of second virial coefficient for gases and the obtained results are compared with the experimental data.
Oreški, S.
core   +1 more source

Critical temperatures of real fluids from the extended law of corresponding states

open access: yesAIP Advances, 2019
The extended law of corresponding states was proposed based on the patterns observed in the second virial coefficient for potential models of variable range.
Alfredo González-Calderón   +2 more
doaj   +1 more source

PVT measurements, virial coefficients, and Joule-Thomson inversion curve of fluorine

open access: yes, 1970
Experimental PVT measurements on gaseous and liquid fluorine from the triple point (53.5 K) to 300 K at pressures to about 21 MN/m2 are presented. The data are represented by a truncated virial equation in the low-density region.
Prydz, Rolf; Straty, G.C.
core   +1 more source

Quantum corrections for the noncentral intermolecular forces to the second virial coefficient of deuterium gas

open access: yes, 1970
The quantum corrections to the second virial coefficient of simple nonpolar polyatomic gases have been calculated for the noncentral intermolecular forces by taking into consideration the various factors, viz., (1) quadrupole-quadrupole interaction, (2 ...
Singh, Y.   +3 more
core   +1 more source

Theoretical calculations for the superheated steam properties up to 8.0 MPa based on the ideal gas law with the compressibility factor Z

open access: yesCase Studies in Thermal Engineering
Not only is superheated steam still widely used as a primary working fluid for driving various types of power generation systems, but it is also an essential intermediary substance for reforming fossil fuels.
Sedong Kim   +3 more
doaj   +1 more source

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