Equilibrium behaviour of fluids in the critical region from the fourth-order virial expansion: Supercritical fluid extraction of solids
作者： Thomáš Boublík
DOI: 10.1016/S0378-3812(01)00379-X
关键词: Dipole 、 Thermodynamics 、 Compressibility factor 、 Supercritical fluid extraction 、 Virial theorem 、 Radial distribution function 、 Chemistry 、 Virial coefficient 、 Supercritical fluid 、 Virial expansion
摘要: The fourth-order virial expansion enables an exact and accurate description of the equilibrium behaviour pure fluids mixtures at temperatures close to densities up twice critical values, provided all coefficients are known with good accuracy. paper deals determination for molecular whose molecules interact via Kihara generalised plus electrostatic pair potentials. Virial expansions compressibility factor chemical potential used determine solubilities naphthalene in carbon dioxide acetone (cosolvent). Dependence on values dipole moment (or quadrupole moment) cosolvent is studied.
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