Kinetic theory of chemical reactions on crystal surfaces

A kinetic theory describing chemical reactions on crystal surfaces is introduced. Kinetic equations are used to model physisorbed-gas particles and chemisorbed interacting with fixed potentials colliding phonons. The phonons assumed be at equilibrium the species coupled similar atoms surface. An arbitrary number of gaseous species, surface heterogeneous considered may polyatomic. entropy introduced for system H theorem established. Using a fluid scaling Chapman–Enskog method, boundary conditions derived from involve complex chemistry as well tangential multicomponent diffusion.