TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
RATE CONSTANT [2 records]
Record 1 - internal organization data 2010-09-15
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
Record 1, Main entry term, English
- rate constant
1, record 1, English, rate%20constant
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The temperature-dependent magnitude that characterizes the velocity of a chemical reaction, as a function of the concentration of one of the reactants. It has the unit:(concentration)1-n x (time)-1, where n is the order of the reaction. 1, record 1, English, - rate%20constant
Record number: 1, Textual support number: 1 CONT
The Michaelis-Menten theory assumes that the enzyme ... first combines with the substrate ... to form the enzyme-substrate complex ...; the latter then breaks down in a second step to form free enzyme and the product.... These reactions are assumed to be reversible; the rate constants for the forward and reverse directions respectively have a positive and a negative subscript. 2, record 1, English, - rate%20constant
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
Record 1, Main entry term, French
- constante de vitesse
1, record 1, French, constante%20de%20vitesse
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Valeur représentant la vitesse de réaction (...) lorsque la concentration de A est égale à l'unité. Cette valeur s'exprime en M1-v x sec-1, où v est l'ordre défini par rapport à l'ensemble des réactifs. 2, record 1, French, - constante%20de%20vitesse
Record number: 1, Textual support number: 1 CONT
L'ordre de grandeur des constantes de vitesse de catalyse dans la majorité des réactions enzymatiques est de 10 à 1 000 (10 à 1 000 molécules de substrat transformé par seconde et par molécule d'enzyme) à température ambiante. Ces réactions sont dans certains cas plusieurs milliards de fois plus rapides que lorsqu'elles ont lieu spontanément en absence de catalyseur. 3, record 1, French, - constante%20de%20vitesse
Record number: 1, Textual support number: 1 OBS
En raison de contraintes d'ordre technique, les formules figurant dans la source CBT-167 ne peuvent être reproduites. 4, record 1, French, - constante%20de%20vitesse
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1997-02-18
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- rate constant
1, record 2, English, rate%20constant
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Rate coefficients referring to (or believed to refer to) elementary reactions are called rate constants. 1, record 2, English, - rate%20constant
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- constante de vitesse
1, record 2, French, constante%20de%20vitesse
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
On désigne par «constante de vitesse» le coefficient de vitesse d'une réaction élémentaire ou celui d'une réaction supposé telle. 1, record 2, French, - constante%20de%20vitesse
Record 2, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada
Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified: