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KMID : 1059520120560020207
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Journal of the Korean Chemical Society
2012 Volume.56 No. 2 p.207 ~ p.211
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A New Two-Parameter Equation of State for Pure Gases of Hard Spheres with An Attractive Potential
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Jung Hae-Young
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Abstract
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Using Carnahan-Starling equation for hard spheres and a lattice model with an attractive potential, a new twoparameter equation of state for pure gases is derived. Using this equation, compressibility factors are calculated and compared with Nelson-Obert generalized compressibility factor charts. The results show that the agreement of this equation with the experimental Nelson-Obert charts is similar to that of Redlich-Kwong equation in the average. But parameters and terms of the new equation have physical meanings which are more definite than those of Redlich-Kwong equation.
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KEYWORD
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Equation of state, Lattice gas
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