Coherent thermodynamic model for solid,liquid and gas phases of elements and simple compounds in wide ranges of pressure and temperature |
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| Institution: | 1. Innovation Centre - Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia;2. Department of General and Inorganic Chemistry, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia;3. Faculty of Mining and Geology, University of Belgrade, ?u?ina 7, 11000 Belgrade, Serbia;4. Faculty of Physical Chemistry, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia;1. Laboratory of Physics and Quantum Chemistry, M. Mammeri University, BP17RP-15000 Tizi Ouzou, Algeria;2. Institute of Molecules and Materials du Mans UMR 6023, University du Maine 72085 Le Mans, France;1. Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA;2. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA;1. Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China;2. Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China;3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;4. School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China;5. Key Laboratory for Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China;1. College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Longteng Road 333, 201620 Shanghai, PR China;2. Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany;1. Lebanese German University, Sahel-Alma Campus, Jounieh, P.O.BOX 206, Lebanon;2. Université de Bordeaux, ICMCB-CNRS, Pessac, France |
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| Abstract: | Thermodynamic modeling of fluids (liquids and gases) uses mostly series expansions which diverge at low temperatures and do not fit to the behavior of metastable quenched fluids (amorphous, glass like solids). These divergences are removed in the present approach by the use of reasonable forms for the “cold” potential energy and for the thermal pressure of the fluid system. Both terms are related to the potential energy and to the thermal pressure of the crystalline phase in a coherent way, which leads to simpler and non diverging series expansions for the thermal pressure and thermal energy of the fluid system. Data for solid and fluid argon are used to illustrate the potential of the present approach. |
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| Keywords: | Statistical mechanics Thermodynamics Solids Fluids Liquids Gases High pressure Equation of states |
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