A theoretical model to correlate and predict the liquid diffusion coefficients in binary sys-tems has been developed.Based on this mode1 the diffusion coefficient of 73 binary systems have beencorrelated,the overall a...A theoretical model to correlate and predict the liquid diffusion coefficients in binary sys-tems has been developed.Based on this mode1 the diffusion coefficient of 73 binary systems have beencorrelated,the overall average deviation of the correlation for diffusion coefficients is 0.009.Forbinary systems the diffusion coefficients have been predicted from vapor liquid phase equilibrium(VLE)and vice versa.展开更多
Diffusion coefficients were determined for benzene, toluene, ethylbenzene, p-xylene, o-xylene, 1, 3, 5-trimethylbenzene in n -heptane and in n-octane at 303.2K to 333.2K. A new predictive equation for liquid diffusion...Diffusion coefficients were determined for benzene, toluene, ethylbenzene, p-xylene, o-xylene, 1, 3, 5-trimethylbenzene in n -heptane and in n-octane at 303.2K to 333.2K. A new predictive equation for liquid diffusion coefficients, based on Eyring's absolute rate theory, was proposed. The active energy of diffusion was determined from the active energy of viscosity. It had the advantage of being based entirely on theoretical considerations and involved no experimental curve-fitting parameters.展开更多
文摘A theoretical model to correlate and predict the liquid diffusion coefficients in binary sys-tems has been developed.Based on this mode1 the diffusion coefficient of 73 binary systems have beencorrelated,the overall average deviation of the correlation for diffusion coefficients is 0.009.Forbinary systems the diffusion coefficients have been predicted from vapor liquid phase equilibrium(VLE)and vice versa.
文摘Diffusion coefficients were determined for benzene, toluene, ethylbenzene, p-xylene, o-xylene, 1, 3, 5-trimethylbenzene in n -heptane and in n-octane at 303.2K to 333.2K. A new predictive equation for liquid diffusion coefficients, based on Eyring's absolute rate theory, was proposed. The active energy of diffusion was determined from the active energy of viscosity. It had the advantage of being based entirely on theoretical considerations and involved no experimental curve-fitting parameters.
