Title: STATISTICAL THEORY OF DIFFUSION-REACTION PROCESSES IN THE SYSTEM ``METAL-ADSORBATE-GAS''
Author(s): P.P.Kostrobii, B.M.Markovych, Yu.K.Rudavskii (State University ``Lvivska Politehnika'', 12 Bandera Str., 79646 Lviv, Ukraine), M.V.Tokarchuk (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine)

We present a statistical theory for diffusion-reaction processes of gaseous mixture in the system ``metal-adsorbate-gas''. The theory is based on an equal consideration of electron-electron, electron-atom and atom-atom interactions between adsorbed, non-adsorbed atoms and atoms of metal surface. On a metal surface, the bimolecular reactions of the $A + B \leftrightarrow AB$ type are possible between the adsorbed atoms which is typical of catalytic processes. By means of Zubarev nonequilibrium statistical operator, the system of transport equations is obtained for a consistent description of electronic kinetic and diffusion-reaction atomic processes.

Key words: adsorbate, diffusion-reaction atomic processes, transport equations
PACS: 05.30.Ch, 05.20.Dd, 73.40.Gk, 68.45.Kg