Viscosity of the Binary Gaseous Mixtures He–Ne and Ne–N2 in the Temperature Range 25–700°C

The paper presents new relative measurements of the viscosity of the binary mixtures $\mathrm{He}–\mathrm{Ne}$ and $\mathrm{Ne}–{\mathrm{N}}_2$ , as well as repeated determinations of the viscosity of the pure gases. The experiments were performed using an oscillating‐disk viscometer; they were made at atmospheric pressure and in the nominal temperature range 25–700°C. The accuracy of the measurements is one of $\text{± 0.1\%}$ at 25°C, deteriorating to $\text{± 0.3\%}$ at 700°C. Tables of the thermal conductivity of the monatomic‐gas mixture are provided together with values for pure nitrogen. The binary diffusion coefficients for the mixtures have also been computed.