Matches in DBpedia 2016-04 for { ?s ?p "In chemical kinetics, the pre-exponential 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 experiment, while Z is usually left for collision frequency.For a first-order reaction, it has units of s−1. For that reason, it is often called frequency factor.The frequency factor, A, depends on how often molecules collide when all concentrations are 1 mol/L and on whether the molecules are properly oriented when they collide.Values of A for some reactions can be found in here."@en }
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- Pre-exponential_factor abstract "In chemical kinetics, the pre-exponential 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 experiment, while Z is usually left for collision frequency.For a first-order reaction, it has units of s−1. For that reason, it is often called frequency factor.The frequency factor, A, depends on how often molecules collide when all concentrations are 1 mol/L and on whether the molecules are properly oriented when they collide.Values of A for some reactions can be found in here.".
- Q845533 abstract "In chemical kinetics, the pre-exponential 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 experiment, while Z is usually left for collision frequency.For a first-order reaction, it has units of s−1. For that reason, it is often called frequency factor.The frequency factor, A, depends on how often molecules collide when all concentrations are 1 mol/L and on whether the molecules are properly oriented when they collide.Values of A for some reactions can be found in here.".