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KMID : 1059520130570050540
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Journal of the Korean Chemical Society
2013 Volume.57 No. 5 p.540 ~ p.546
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The Effect of Nonrandom Distribution of Molecules on the Equation of State for Gases
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Jung Hae-Young
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Abstract
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Using the free volume of van der Waals equation, Carnahan-Starling equation for hard spheres, Wilson equation for nonrandom mixing of solution, NRTL equation and our equation, several new equations of states for pure gases are derived. Using these equations, compressibility factors for pure gases are calculated and compared with Nelson-Obert generalized compressibility factor charts. The equation of states using the concept of molecular nonrandom distribution gave better results than those of molecular random distribution. This shows that the molecular nonrandom distribution makes considerable effect on the equation of states.
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KEYWORD
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Equation of state, Nonrandom distribution, Nonrandom mixing
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