Second acoustic virial coefficients of nitrogen between 80 and 373 K

Ewing, M.B.; Trusler, J.P.M.

Second acoustic virial coefficients of nitrogen between 80 and 373 K

M.B. Ewing and J.P.M. Trusler

Physica A: Statistical Mechanics and its Applications, 1992, vol. 184, issue 3, 415-436

Abstract: The speed of sound in nitrogen has been measured in the temperature range 80 to 373 K and in the density range 10 to 200 mol/m3 using a spherical resonator. Values of the second acoustic virial coefficient have been determined from the results with an imprecision of no worse than 0.11 cm3/mol. This estimation of imprecision includes all known sources of systematic and random errors at the level of one standard deviation. The results are compared with values calculated from two recently proposed intermolecular potential-energy functions for this system both of which were based partially on second virial coefficient data. Although neither of these functions proved able to predict the acoustic virial coefficients to within the high precision of the present measurements, the potential of Ling and Rigby (Mol. Phys. 51 (1984) 855) gives results that deviate by less than 1 cm3/mol.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:184:y:1992:i:3:p:415-436

DOI: 10.1016/0378-4371(92)90314-G

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