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순수물질의 PVT관계 계산을 위한 Perturbed Hard Sphere 모델의 적용
최호석,Dor Ben-Amotz 忠南大學校 産業技術硏究所 1996 산업기술연구논문집 Vol.11 No.2
We have calculated thermodynamic properties of pure fluids of using a simple perturbed hard-sphere equation of state (the Camahan-Starling-van der Waals equation, denoted CS-vdW). In this calculation, we have used both 2 parameter equation and 4 parameter equation. It has been observed that 4 parameter model has shown better agreement with experimental results than 2 parameter model. It is because σand τof real fluids mildly depends on temperature. Since, however, 2 parameter model also has shown considerably good agreement with experimental results within certain temperature range and has effectively calculated useful thermodynamic properties of fluids, it may have been used to estimate thermodynamic properties of various solvent molecules in real chemical processes.