The Viscosity and Diffusion Coefficient of Binary Mixtures of Nitrous Oxide with He, Ne and CO

The paper reports absolute measurements of the low‐density viscosity of binary mixtures of nitrous oxide with helium, neon and carbon monoxide in the temperature range 25 to 200°C. The viscosity data, which have an accuracy of ± 0.3%, are employed to confirm that the three systems, involving a weakly polar component, may be incorporated into the correlation scheme of the KRW law of corresponding states. The scaling parameters σij and ϵij which secure the optimum representation of the data by means of the universal collision integral Ω22 are derived. The internally consistent binary diffusion coefficients, calculated from the mixture viscosity, may themselves be successfully represented with the aid of the universal collision integral Ω11.