Results 11 to 20 of about 121,703 (314)

Helmholtz Free Energy Equation of State for 3He–4He Mixtures at Temperatures Above 2.17 K [PDF]

open access: hybridJournal of Physical and Chemical Reference Data, 2021
Changzhao Pan, Haiyang Zhang, Bo Gao
exaly   +2 more sources

Calculation of electronic excited states of molecules using the Helmholtz free-energy minimum principle [PDF]

open access: bronzePhysical Review A, 2013
We show that the Helmholtz free-energy variational principle is the physical principle underlying the ensemble variational theory formulated in seminal papers by Theophilou and by Gross, Oliveira, and Kohn. A method of calculating electronic excitations of atoms and molecules is then proposed, based on the constrained minimization of the free energy ...
Ewa Pastorczak   +2 more
openalex   +4 more sources

The ion equation of state of plasmas in the warm dense matter regime

open access: yesAIP Advances, 2023
The existing “quotidian equation of state (QEOS)” model [More et al., Phys. Fluids 31, 3059 (1988)] has been revised, and an alternative set of formulas is provided for the Helmholtz free energy, internal energy, heat capacity, and pressure.
George M. Petrov, Asher D. Davidson
doaj   +1 more source

Accuracy of some useful closure relations in combination with the reference interaction site model theory for fluids of single component diatomic molecules

open access: yesAIP Advances, 2022
We examined the accuracy of the reference interaction site model theory in terms of the thermodynamics of fluids consisting of single-component diatomic molecules, where we evaluated the internal energy, pressure, and isothermal compressibility.
Tatsuhiko Miyata   +3 more
doaj   +1 more source

Impact of Thermal Fluctuations on Logarithmic Corrected Massive Gravity Charged Black Hole

open access: yesEntropy, 2021
We investigate the influence of the first-order correction of entropy caused by thermal quantum fluctuations on the thermodynamics of a logarithmic corrected charged black hole in massive gravity.
Abdul Jawad   +2 more
doaj   +1 more source

Counter-intuitive penetration of droplets into hydrophobic gaps in theory and experiment

open access: yesScientific Reports, 2023
Droplets that spontaneously penetrate a gap between two hydrophobic surfaces without any external stimulus seems counterintuitive. However, in this work we show that it can be energetically favorable for a droplet to penetrate a gap formed by two ...
Daniel Hagg   +4 more
doaj   +1 more source

Investigation of some basic thermodynamic properties of Na-K alloy

open access: yesBibechana, 2021
Investigation of thermodynamic of liquid binary alloys using pseudopotential theory is reported. The potential suggested by Fiolhais et al. with its individual parameters is used for the entire calculation.
Rajesh C Malan, Aditya M Vora
doaj   +3 more sources

Free Energy Changes during Spherical Droplet Deposition—Mechanistic Model

open access: yesEnergies, 2022
On the basis of theoretical considerations (mechanistic model), an equation was determined that allowed to calculate the free energy (Helmholtz) of a spherical droplet deposited on a flat surface in a system without external forces.
Jacek A. Michalski, Slawomir Jakiela
doaj   +1 more source

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