Critical Constants Correlation from van der Waals Equation
نویسندگان
چکیده
منابع مشابه
Generalized van der Waals equation of state*
The quantitative thermodynamic effect of adding a weak, long-range attraction to inverse-power repUlsive potentials is studied. The resulting phase diagrams exhibit two fluid phases and a solid phase. a critical point, a triple point, and, for sufficiently soft repulsions, an additional solid phase with an additional triple point. The effects of attractions other than van der Waals' are studied...
متن کاملVolumetric properties of high temperature, high pressure supercritical fluids from improved van der Waals equation of state
In the present work, a modified equation of state has been presented for the calculation of volumetric properties of supercritical fluids. The equation of state is van der Waals basis with temperature and density-dependent parameters. This equation of state has been applied for predicting the volumetric properties of fluids. The densities of fluids were calculated from the new equation of state...
متن کاملBrane cosmology with a van der Waals equation of state
The evolution of a Universe confined onto a 3-brane embedded in a five-dimensional space-time is investigated where the cosmological fluid on the brane is modeled by the van der Waals equation of state. It is shown that the Universe on the brane evolves in such a manner that three distinct periods concerning its acceleration field are attained: (a) an initial accelerated epoch where the van der...
متن کاملThe van der Waals equation: analytical and approximate solutions
The thermodynamic properties, enthalpy of vaporization, entropy, Helmholtz function, Gibbs function, but especially the heat capacity at constant volume of a van der Waals gas (and liquid) at the phase transition are examined in two different limit approximations. The first limit approximation is at the near-critical temperatures, i.e., for T/Tc → 1, where Tc is the critical temperature, the ot...
متن کاملV.C The Second Virial Coefficient & van der Waals Equation
• Remarks and observations: (1) The tail of the van der Waals attractive potential (∝ r) extends to very long sep arations. Yet, its integral in eq.(V.39) is dominated by contributions from the short scales r0. In this limited context, the van der Waals potential is short-ranged, and results in corrections to the ideal gas behavior that are analytical in density n, leading to the virial series...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ingeniería y Ciencia
سال: 2019
ISSN: 1794-9165,2256-4314
DOI: 10.17230/ingciencia.15.30.4