Accession Number : ADA324886

Title :   Kinetics of Heterogeneous Reaction Processes.

Descriptive Note : Final rept. 1 Jan 93-31 Dec 96,

Corporate Author : BOSTON UNIV MA DEPT OF PHYSICS

Personal Author(s) : Redner, Sidney

PDF Url : ADA324886

Report Date : 28 MAR 1997

Pagination or Media Count : 12

Abstract : There were several major results in this project. We determined the unusual kinetics of simple heterogeneons reactions in which the mobility or velocity of each reactant is drawn from a distribution. We also elucidated the rich variety of kinetics in reactions where particles move on ballistic trajectories. Next, we mapped out the kinetics of a simple catalysis model on a disordered surface. Enhanced reactivity was discovered which arises specifically from the surface disorder. Third, we found surprising behavior in the kinetics and spatial organization of reactants in two-species annihilation, A + B right arrow O, when all particles move in the same direction. We then investigated the coarsening kinetics of a system of growing and competing domains which can be viewed as a toy model of war. Finally, we describe advances in a number of physical realizations of aggregation and annihilation.

Descriptors :   *REACTION KINETICS, *HETEROGENEITY, *CATALYSIS, SPATIAL DISTRIBUTION, ORDER DISORDER TRANSFORMATIONS, MONTE CARLO METHOD, SURFACE CHEMISTRY, DIFFUSION, BALLISTIC TRAJECTORIES, ANNIHILATION REACTIONS.

Subject Categories : Physical Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE