The Local Heat Conductivity Coefficients of Inert Gases
and Liquids in Narrow Slitlike Pores

Yu. K. Tovbin, L. K. Zhidkova, and V. N. Komarov

Karpov Research Institute of Physical Chemistry, ul. Vorontsovo pole 10, Moscow, 103064 Russia

Received July 30, 2002

Abstract—The concentration dependences of heat conductivity coefficients capable of describing objects from
dense gases to liquids within the framework of the lattice model are considered. For monoatomic gases, the
model takes into account two energy transfer channels, namely, energy transfer in motions of molecules by the
vacancy mechanism (the channel characteristic of rarefied gases) and in collisions of molecules (the channel
characteristic of condensed phases). The influence of the pore width, the adsorbent–adsorbate interaction poten-
tial, and the surface mobility of adsorbate atoms on the concentration dependences of local heat conductivity
coefficients is studied under the conditions of changes in the total amount of an adsorbate in slitlike pores.

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