Viscosity of the Binary Gaseous Mixture Helium-Nitrogen

The paper presents new relative measurements of the viscosity of binary mixtures of helium and nitrogen, together with 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 precision being one of ±0.1%. Tables of thermodynamically consistent values of the thermal conductivity of the pure gases are given. The binary diffusion coefficient for the mixture has also been computed.