Dynamics of Chemisorption and Heterogeneous Reactions
The dynamics of molecular collisions emphasize the individual microscopic encounters between molecules. The parameters of interest are collision energy, internal states of reactants and products, and cross-sections for the formation of various products. The detailed description of molecular collision has led to a Golden Rule of Chemical Dynamics:(1) NOT ALL FORMS OF ENERGY ARE EQUAL. When energy is released in a chemical reaction, it tends to go into certain places (internal molecular motion of some kind, or translation) rather than others. If this preferential energy disposal can be monitored before the products collide further and distribute the energy elsewhere, much interesting information about the collision dynamics can be obtained. If enough energy can be deposited in vibration, and the excited states do not decay too rapidly by subsequent collisions, high-power chemical lasers can be constructed.
KeywordsImpact Parameter Vibrational Level Heterogeneous Reaction Adsorbed Atom Translational Energy
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