Compressibility isotherms of helium-nitrogen mixtures at 298.15 K and up to 10 kbar

Wei Zhang, Samirendra N. Biswas and Jan A. Schouten

Physica A: Statistical Mechanics and its Applications, 1992, vol. 182, issue 3, 353-364

Abstract: The compressibility isotherms of three samples of He-N2 mixtures containing, respectively, 25,50 and 75 mol% helium have been measured at 298.15 K and at pressures between 2 and 10 kbar using a modified stepwise expansion method. The accuracy of the measurements is estimated to be better than 0.05% in the pressure, 0.1% in the density and 0.005 K in the temperature. The experimental p-ϱ data for the three mixtures as well as the pure components can be represented over the full pressure and composition range by an isothermal equation of state with a standard deviation of 0.3%.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:182:y:1992:i:3:p:353-364

DOI: 10.1016/0378-4371(92)90349-U

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