preexponential factor

См. также в других словарях:

• preexponential — adjective Describing any factor that multiplies an exponential function See Also: preexponent …   Wiktionary

• Pre-exponential factor — In chemical kinetics, the preexponential factor or A factor is the pre exponential constant in the Arrhenius equation, an empirical relationship between temperature and rate coefficient. It is usually designated by A when determined from… …   Wikipedia

• Steric factor — Steric factor, P [ [http://www.iupac.org/goldbook/S05998.pdf IUPAC Goldbook definition of Steric Factor] ] is a term used in collision theory.It is defined as the ratio between the experimental value of the rate constant and the one predicted by… …   Wikipedia

• Collision theory — Reaction rate tends to increase with concentration phenomenon explained by collision theory Collision theory is a theory proposed by Max Trautz[1] and William Lewis in 1916 and 1918, that qualitatively explains how chemical reactions occur and… …   Wikipedia

• Kinetic isotope effect — The kinetic isotope effect (KIE) is the ratio of reaction rates of two different isotopically labeled molecules in a chemical reaction. It is also called isotope fractionation, although this term is somewhat broader in meaning. A KIE involving… …   Wikipedia

• preexponent — noun Any factor that multiplies an exponential function See Also: preexponential …   Wiktionary