Mj. Assael et al., TEMPERATURE AND INITIAL DENSITY-DEPENDENCE OF EXPERIMENTAL VISCOSITY AND CALCULATED DIFFUSION-COEFFICIENTS FOR BINARY VAPOR MIXTURES OF BENZENE PHENOL, Journal of non-equilibrium thermodynamics, 19(1), 1994, pp. 47-60
High-precision viscosity data were determined for vapor mixtures of be
nzene-phenol at relatively low densities by means of an all-quartz osc
illating-disk viscometer with small gaps. Five series of measurements
each differing in the mole fraction as well as in the density were per
formed in the temperature range 400-637 K up to 0.0136 mol.L-1. The ev
aluation of the experimental data with the modified Enskog theory incl
uding the initial density dependence of viscosity instead of the Chapm
an-Enskog theory for the transport properties of dilute gaseous mixtur
es has resulted in consistent values of the interaction viscosity in t
he limit of zero density. The obtained results have been used to deriv
e binary diffusion coefficients.