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Intermolecular Model Potentials and Virial Coefficients from Acoustic Data by Monago, K.O.; Dawodu, O.T. is a Environmental Science article available to read on EtoBox.

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A simple method is presented for the determination of model two-and three-body intermolecular potentials from acoustic data. The method is applied to argon, nitrogen, methane, ethane and propane. For argon, the second, third and fourth volumetric virial coefficients from the model potentials are compared with values determined in direct experiments. Second virial coefficients are shown to be in very good agreement with experiment. For the third volumetric virial coefficients, significant discrepancies are noted in the region of the maximum in the function. There are no experimental data for a direct comparison of the fourth volumetric virial coefficients presented here; however, because in a previous work, it was shown that fourth acoustic virial coefficients calculated from a similar method agreed with values determined in direct experiment, we argue that the values presented here are accurate.

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Author

Monago, K.O.; Dawodu, O.T.

Publisher

Africa Journals Online; African Journals Online ; African Journals Online (AJOL) (ISSN 1119-8362)

Published

2018

Language

EN

Field

Environmental Science (Physical Sciences)