Collision theory - Wikipedia Collision theory is a principle of chemistry used to predict the rates of chemical reactions It states that when suitable particles of the reactant hit each other with the correct orientation, only a certain amount of collisions result in a perceptible or notable change; these successful changes are called successful collisions
Collision-induced dissociation - Wikipedia Collision-induced dissociation (CID), also known as collisionally activated dissociation (CAD), is a mass spectrometry technique to induce fragmentation of selected ions in the gas phase [1][2] The selected ions (typically molecular ions or protonated molecules) are usually accelerated by applying an electrical potential to increase the ion
Inelastic scattering - Wikipedia In chemistry, nuclear physics, and particle physics, inelastic scattering is a process in which the internal states of a particle or a system of particles change after a collision Often, this means the kinetic energy of the incident particle is not conserved (in contrast to elastic scattering) Additionally, relativistic collisions which involve a transition from one type of particle to
Collision cascade - Wikipedia Collision cascade A classical molecular dynamics computer simulation of a collision cascade in Au induced by a 10 keV Au self-recoil This is a typical case of a collision cascade in the heat spike regime Each small sphere illustrates the position of an atom, in a 2-atom-layer-thick cross section of a three-dimensional simulation cell
Chemical kinetics - Wikipedia Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions It is different from chemical thermodynamics, which deals with the direction in which a reaction occurs but in itself tells nothing about its rate
Brownian motion - Wikipedia Some of these collisions will tend to accelerate the Brownian particle; others will tend to decelerate it If there is a mean excess of one kind of collision or the other to be of the order of 10 8 to 10 10 collisions in one second, then velocity of the Brownian particle may be anywhere between 10–1000 cm s
Glossary of chemistry terms - Wikipedia This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment Chemistry is a physical science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions; it features an extensive vocabulary and a
Collision frequency - Wikipedia Collision frequency describes the rate of collisions between two atomic or molecular species in a given volume, per unit time In an ideal gas, assuming that the species behave like hard spheres, the collision frequency between entities of species A and species B is [1] [better source needed] where