Results 21 to 30 of about 705,406 (173)

Second order virial coefficients from phase diagrams

open access: yes, 2020
The prediction of phase separation is essential to understand and control the properties of food systems. In this work, an existing theoretical model for describing phase separation between binary mixtures of hydrocolloids, using a virial approach up to ...
Venema, P.   +3 more
core   +1 more source

On Using the BMCSL Equation of State to Renormalize the Onsager Theory Approach to Modeling Hard Prolate Spheroidal Liquid Crystal Mixtures

open access: yesEntropy, 2021
Modifications to the traditional Onsager theory for modeling isotropic–nematic phase transitions in hard prolate spheroidal systems are presented. Pure component systems are used to identify the need to update the Lee–Parsons resummation term.
Donya Ohadi   +2 more
doaj   +1 more source

An EOS for the Lennard-Jones fluid: A virial expansion approach

open access: yesAIP Advances, 2019
A large number (>30 000) of Monte Carlo simulations in range of 0.002–1.41 ρ* and T* ≤ 25 (* for reduced, dimensionless) was performed, producing a dense grid of state points for the internal energy U* and pressure p*.
Matthias Gottschalk
doaj   +1 more source

Determination of the Second Virial Coefficient for Binary Mixtures of Ar with CH4 and CO using Van der Waals and Dieterici Models [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2019
In this paper, we calculate the second virial coefficient for binary mixtures of Ar with CH4 and CO in order to evaluate the performance of equations of state (EOSs).
Mohsen Najafi, Elham Marzbanpour
doaj   +1 more source

Calculation of Virial Coefficients and Their Uses [PDF]

open access: yes, 2010
This work is centers on the classical statistical derivation of thermodynamic properties of a system from its pair potential through the calculation of virial coefficients and also develops a useful method for modeling systems with the square-well ...
Getter, Nicholas
core   +1 more source

An investigation of virial coefficients of gases [PDF]

open access: yes
The most widely used experimental method for studying the forces between pairs of molecules is the determination of the second compressibility virial coefficient, B, defined by: z = Pvm/RT = 1 + B/Vm + C/V2 + . . . For non-polar gases at temperatures
Haworth, William S.
core   +1 more source

Virial Coefficients for Thermodynamic Systems with Hill Pseudopotential [PDF]

open access: yesЖурнал нано- та електронної фізики, 2015
Temperature dependences of the 2-nd, 3-d and 4-th virial coefficients for chemically aggressive environments are analyzed. Their calculation is performed for several different pair interaction potentials and built on them Hill pseudopotentials.
A.N. Zhorova   +3 more
doaj  

Second Virial Coefficients for Nonspherical Molecules and Their Experimental Measurements [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1991
The virial coefficients can be obtained from statistical mechanics in connection with the intermolecular potentials. The intermolecular potential of polyatomic molecules is usually assumed to consist of a spherically symmetric component plus a ...
A. Boushehri, S.H. Moosavipour
doaj  

Modeling of multicomponent and multitemperature adsorption equilibria of water vapor and organic compounds on activated carbons

open access: yesAdsorption Science & Technology, 2016
Adsorption equilibria of the pure component and binary gaseous mixtures of water vapor and organic compound (toluene or n-butanol) on two selected activated carbons: Sorbonorit 4 and BPL 4×6 were studied.
Józef Nastaj   +2 more
doaj   +1 more source

Quatrièmes coefficients d’amas et du viriel d’un gaz unitaire de fermions pour un rapport de masse quelconque

open access: yesComptes Rendus. Physique, 2022
We calculate the fourth cluster coefficients of the homogeneous unitary spin 1/2 Fermi gas as functions of the internal-state mass ratio, over intervals constrained by the 3- or 4-body Efimov effect.
Endo, Shimpei, Castin, Yvan
doaj   +1 more source

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