نتایج جستجو برای: liquid density
تعداد نتایج: 615622 فیلتر نتایج به سال:
The (extended) lowest order constrained variational ((E) LOCV) method was used to calculate the ground state energy of liquid helium 3 (3He) droplets at zero temperature. Different types of density distribution profiles, such as the Gaussian, the Quasi-Gaussian and the Woods-Saxon were used. It was shown that at least, on average, near 20 3He atoms are needed to get the bound state for 3He liq...
Investigation of Thermodynamic Properties of Heavy Metals from Melting and Critical Point Properties
A statistical mechanical based equation of state has been employed to calculate the liquid density of lead, mercury, bismuth and lead-bismuth and lead-lithium eutectic alloys.The equation is basically that of Song, Mason and Ihm [Ihm G, Song Y, Mason EA. J. Chem. Phys.1991; 94: 3839] which is modified by Ghatee and Boushehri. Three temperature dependent parameters are required to use this e...
Liquid Density Modeling of Pure Refrigerants Using Four Lattice-Hole Theory Based Equations of State
The present study investigates the performance and relative accuracy of four lattice-hole theory based equations of state in modeling and correlating the liquid density of pure refrigerants. Following the gathering of a database of 5740 experimental liquid density datapoints of 36 pure refrigerants belonging to five different categories including CFCs, HCFCs, PFCs, HFCs and HFEs, ranging from 6...
The density of Ga203 liquid in equilibrium with air has been measured at 1800” to 1900°C using an Ir double-bob Archimedean method. The data yield the following description of the density of Gaz03 liquid: p = 4.8374(84)0.00065(12)(T -18S0°C). This density-temperature relationship is compared with the partial molar volume of GazO3 in glasses in the systems CaO-Ga203 -SiOz and Naz0-Ga2O3-SiO2, co...
investigation of thermodynamic properties of heavy metals from melting and critical point properties
a statistical mechanical based equation of state has been employed to calculate the liquid density of lead, mercury, bismuth and lead-bismuth and lead-lithium eutectic alloys.the equation is basically that of song, mason and ihm [ihm g, song y, mason ea. j. chem. phys.1991; 94: 3839] which is modified by ghatee and boushehri. three temperature dependent parameters are required to use this equat...
We present a simple model for an associating liquid in which polymorphism and density anomaly are connected. Our model combines a two dimensional lattice gas with particles interacting through a soft core potential and orientational degrees of freedom represented through thermal "ice variables." The competition between the directional attractive forces and the soft core potential leads to a pha...
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