ABSTRACT: Based on statistical mechanics, a theoretical model for the density and temperature-dependent viscosity of hydrocarbon gas has been developed. In the model, the averaged intermolecular attractive potential was suggested as a power function of density, and the viscosity was derived as an exponential function of the potential. In the evaluation, the derived equation was found in good agreement with reliable literature data with averaged and maximum absolute percent deviations of 0.34% and 0.98%, and comprehensively performed better than...
