Thermal conductivity data for hydrogen and deuterium in the range 100-1100 degrees C

The conductivity column method is used to measure the thermal conductivity k of hydrogen, deuterium and nitrogen from 100 degrees C to 1000, 1100 and 1200 degrees C respectively with an overall uncertainty of +or-2%. The data for each gas are correlated by a quadratic polynomial in temperature (TK). These expressions are 10 5 k (hydrogen)=20.37+8.20*10 -2 T+3.56*10 -6 T 2 10 5 k (deuterium) = 16.80+5.68*10 -2 T+2.354*10 -6 T 2 and 10 5 k (nitrogen) = 1.184+1.77*10 -2 T-3.704*10 -6 T 2 . The conductivity data are also used to generate indirectly the viscosity and diffusion coefficients for these gases as a function of temperature. The results are represented in terms of explicit expressions so that the computation at any desired temperature is considerably facilitated.