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Title: Density estimation of normal alkanes from the statistical-thermodynamic perturbation theory based equation of state
Authors: Zabeti, Ali Reza
Haghighi, Behzad
Papari, Mohammad Mehdi
Ghiamati, Ebrahim
Keywords: Statistical Thermodynamics;Density;Perturbation Theory;Equations of State;Pair Interaction Potential;Alkanes
Issue Date: Apr-2012
Publisher: NISCAIR-CSIR, India
Abstract: An analytical equation of state (EoS) proposed by Ihm-Song-Mason (ISM) is employed to calculate the density of normal alkanes from methane to decane. The best available values of the Lennard-Jones (12,6) parameters have been used to evaluate the second virial coefficient of the EoS for each compound. The second virial coefficient is not very sensitive to the feature of the intermolecular potential. The remaining parameters in the EoS depend only on the repulsive part of the potential. Consequently, they are insensitive to the details of the interaction potential. The calculated second virial coefficients in conjunction with other temperature-dependent parameters of the EoS are employed to predict the density of all alkanes (C1-C10). There is a good agreement comparison between the experimental values of density and the calculated values from ISM EoS for all of the compounds.
Page(s): 591-594
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.51A(04) [April 2012]

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