Journal ArticleDOI
An empirical correlation of second virial coefficients
Reads0
Chats0
TLDR
In this paper, a new correlation of second virial coefficients of both polar and nonpolar systems is presented, which uses the Pitzer-Curl correlation for non-polar compounds, but in a modified form.Abstract:
A new correlation of second virial coefficients of both polar and nonpolar systems is presented. It uses the Pitzer-Curl correlation for nonpolar compounds, but in a modified form. The second virial coefficient of nonhydrogen bonding compounds (ketones, acetaldehyde, acetonitrile, ethers) and weakly hydrogen bonding compounds (phenol) is fitted satisfactorily with only one additional parameter per compound, which is shown to be a strong function of the reduced dipole moment. Two parameters are needed for hydrogen bonding compounds (alcohols, water), but for alcohols, one parameter has been kept constant and the other expressed as a function of the reduced dipole moment. The extension of the correlation to mixtures is satisfactory, direct, and involves only one coefficient per binary.read more
Citations
More filters
Journal ArticleDOI
A generalized thermodynamic correlation based on three‐parameter corresponding states
Byung Ik Lee,Michael G. Kesler +1 more
TL;DR: In this paper, the volumetric and thermodynamic functions correlated by Pitzer and co-workers were analyzed with improved accuracy by a modified BWR equation of state, which provides a smooth transition between the original tables of Pitzer et al. and more recent extensions to lower temperatures.
Journal ArticleDOI
A thermodynamic model of mixed organic-inorganic aerosols to predict activity coefficients
TL;DR: In this paper, the authors present a thermodynamic model named AIOMFAC (Aerosol Inorganic-Organic Mixtures Functional groups Activity Coefficients) that is able to calculate activity coefficients covering inorganic, organic, and organic-inorganic interactions in aqueous solutions over a wide concentration range.
Journal ArticleDOI
A refined droplet approach to the problem of homogeneous nucleation from the vapor phase
A. Dillmann,G. E. A. Meier +1 more
TL;DR: In this article, a theory of homogeneous nucleation from the vapor phase is presented, which is based on an extension of Fisher's semiphenomenological droplet model for the Gibbs free energy of formation of a cluster.
Journal ArticleDOI
On chemical equilibria in methanol synthesis
TL;DR: In this article, the chemical equilibria of the methanol reaction and the water-gas shift reaction, starting from carbon monoxide, carbon dioxide and hydrogen, were studied in a fixed-bed catalytic reactor at P = 10-80 bar and T = 200-270°C.
Journal ArticleDOI
A comparative study of thermodynamic properties and molecular interactions in mono- and polychloroalkane + n-alkane or + cyclohexane mixtures
Henry V. Kehiaian,Bruno Marongiu +1 more
TL;DR: In this article, the DISQUAC group-contribution model was applied to 10 classes of mono- or polychloroalkanes + n-alkanes or + cyclohexane.
References
More filters
Journal ArticleDOI
The Volumetric and Thermodynamic Properties of Fluids. II. Compressibility Factor, Vapor Pressure and Entropy of Vaporization1
Journal ArticleDOI
The Volumetric and Thermodynamic Properties of Fluids. III. Empirical Equation for the Second Virial Coefficient1
Kenneth S. Pitzer,Robert F. Curl +1 more
Journal ArticleDOI
Solubility of water in compressed carbon dioxide, nitrous oxide, and ethane. Evidence for hydration of carbon dioxide and nitrous oxide in the gas phase
Allen D. King,C. R. Coan +1 more
Related Papers (5)
Local compositions in thermodynamic excess functions for liquid mixtures
Henri Renon,John M. Prausnitz +1 more