Correlation of high-pressure diffusion and viscosity coefficients for n -alkanes

摘要: Self-diffusion coefficient and viscosity data for liquid n-alkanes over the whole pressure range at different temperatures are satisfactorily correlated simultaneously by a method which is just an extension of that previously used to apply smooth hard-sphere theory transport properties individual coefficients. Universal curves developed reduced quantities D * η * as function volume. A consistent set values derived characteristic volume V 0 parameters R D R η, introduced account effects nonspherical molecular shape roughness. On this basis, accurate calculation can be made self-diffusion coefficients other members n-alkane series, present limited.