Thermal diffusivity and thermal conductivity of steam in the crossover region

In this paper, we present a comparison of the thermal diffusivity and thermal conductivity data of steam in the temperature range 0.02 K<T-T_c< 140 K with a recent formulation of crossover from singular to regular behavior of the transport properties of fluids. We have used two sets of experimental data previously obtained by the authors. The agreement between experimental and calculated data is good.