rate law

[/reɪt lɔː/]
nounpl: rate laws
lei da velocidade de reação
1. A mathematical equation in chemistry that describes the relationship between the concentration of reactants and the rate of a chemical reaction
The rate law for this reaction is first-order with respect to reactant A and second-order with respect to reactant B.
A lei da velocidade de reação para esta reação é de primeira ordem em relação ao reagente A e segunda ordem em relação ao reagente B.
2. An empirical or theoretical expression that shows how the reaction rate depends on the concentrations of reactants and reaction parameters
Scientists determined the rate law by conducting a series of kinetic experiments.
Os cientistas determinaram a lei da velocidade de reação através de uma série de experimentos cinéticos.
This is a technical term used primarily in academic and scientific contexts in both the USA and Brazil. It is central to the study of chemical kinetics in chemistry courses at high school and university levels. The term maintains consistent meaning across English and Portuguese-speaking scientific communities.
Synonyms / Sinônimos
kinetic equationrate equationreaction rate law

Regional Variations

General Brazilian
lei da velocidade de reação
Most common term used in Brazilian chemistry textbooks and universities
São Paulo
lei de velocidade da reação
Alternative word order commonly used in SP educational institutions
Portugal
lei da velocidade da reação
Standard European Portuguese term used in Portuguese universities

Related Words

reaction kineticsrate constantreaction orderconcentrationchemical reaction mechanism
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