Research Article

Modified Lennard-Jones Potentials with a Reduced Temperature-Correction Parameter for Calculating Thermodynamic and Transport Properties: Noble Gases and Their Mixtures (He, Ne, Ar, Kr, and Xe)

Table 2

Deviations between experimental and calculated second virial coefficients of pure noble gases.

CompoundNumber of data pointsAverage RMSD in (cm3 mol−1) Δ (K) Reference
Present studyDymond et al. L-JKiharaTsonopoulos

Regression results

Helium3045.445.07a10.910.839.12–1473[2]
Neon550.280.340.451.381.5644–873[2]
Argon1050.400.532.431.731.8875–773[2]
Krypton1572.873.185.753.676.90107–873[2]
Xenon1142.502.674.322.533.51160–973[2]

Average 7353.333.296.795.9918.6

Prediction results

Helium84.131.0810.84.2914.9343–374[27]
Xenon90.501.372.572.112.57206–273[28]

Average172.211.236.443.148.37

Two different smoothing functions were used in the temperature ranges between 1.59 K and 35.1 K, and between 35.1 K and 1473.15 K.