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Analytic, explicit and non-empirical equations of state for the double Yukawa and hard core double Yukawa fluids are presented. They are based on a second-order inverse temperature expansion of the free energy within the mean spherical approximation. These equations of state yield good results...
Persistent link: https://www.econbiz.de/10010589276
We extend the kinetic theory of dilute polyatomic gas mixtures to the case where the particles have various internal energy modes. The present theory is valid when the inernal energy modes are mechanically independent and when the various degrees of freedom of the molecules are at zeroth order...
Persistent link: https://www.econbiz.de/10010874726
Within the framework of the effective-field theory with correlations, the ferromagnetism of spin-32 Ising model with a transverse crystal field on honeycomb and square and simple cubic lattices is studied. Tricritical phenomena have been observed for the square and simple cubic lattices, but...
Persistent link: https://www.econbiz.de/10010872619
By using the transfer matrix renormalization group method, we studied the magnetic and thermodynamic properties of the uniform and the nonuniform quantum Heisenberg spin chain with S=12. Compared with experiment results of some compounds, we investigated the effects of different interactions...
Persistent link: https://www.econbiz.de/10010589287
A methodology was developed to analyze relation-based systems evolving in time by using the fundamental concepts of thermodynamics. The behavior of such systems can be tracked from the scattering matrix which is actually a network of directed vectors (or pathways) connecting subsequent values,...
Persistent link: https://www.econbiz.de/10011063981
It is well known that classical equations of state, like the Van der Waals equation, fail in the region near the critical point of a fluid, where the behavior of the thermodynamic properties is strongly affected by density fluctuations. In this paper, we present a theoretical approach to correct...
Persistent link: https://www.econbiz.de/10010874562
In this paper, a simple methodology of applying the Peng–Robinson (P–R) EoS (Equation of State) to easily, quickly, and inexpensively evaluate and screen the performance potentials of many thousands of working fluids in ORC (organic Rankine cycles) is presented. The P–R EoS can be applied...
Persistent link: https://www.econbiz.de/10010906847
The liquid–gas critical points of metals of the first three main groups and those of selected transition metals have been estimated by scaling with the ionization potential and valence. The critical density is shown to be attached to the percolation threshold of the classically accessible...
Persistent link: https://www.econbiz.de/10010871953
Transportation of CO2 in high-pressure pipelines forms a crucial link in the ever-increasing application of Carbon Capture and Storage (CCS) technologies. An unplanned release of CO2 from a pipeline presents a risk to human and animal populations and the environment. Therefore it is very...
Persistent link: https://www.econbiz.de/10010776587
Following the basic prescriptions of the Tsallis’ nonextensive thermodynamics, we study the relativistic nonextensive thermodynamics and the equation of state for a perfect gas at the equilibrium. The obtained results are used to study the relativistic nuclear equation of state in the hadronic...
Persistent link: https://www.econbiz.de/10010588490