Diffusion and Thermal Diffusion in Some Binary Mixtures of the Major Components of Air

Diffusion coefficients are reported for the systems N2‐CO2, O2‐CO2, N2‐O2and Ar‐CO2. Thermal diffusion factors have also been measured for the first two systems and used, together with the above diffusion coefficients and second virial coefficients from the literature, to derive approximate spherical potentials to describe the unlike interactions in these two systems.