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ZERO-ORDER REACTION [3 records]
Record 1 - internal organization data 2011-08-09
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
Record 1, Main entry term, English
- reaction order
1, record 1, English, reaction%20order
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Chemical reactions may be classified on the basis of the number of molecules that must ultimately react to form the reaction products. Thus, we have monomolecular, bimolecular, and termolecular reactions, in which one, two, or three molecules, respectively, undergo reaction. Chemical reactions are also classified on a kinetic basis, by reaction order and we have zero-order, first-order, second-order, and third-order reactions, depending on how the reaction rate is influenced by the concentration of the reactants under a given set of conditions. 2, record 1, English, - reaction%20order
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
Record 1, Main entry term, French
- ordre d'une réaction
1, record 1, French, ordre%20d%27une%20r%C3%A9action
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Somme des exposants qui, dans l'expression de la vitesse, affectent les concentrations des corps réagissants. Il est donné par l'équation différentielle de Van't Hoff [...] où le premier membre représente la vitesse de réaction et C la concentration. Si n = 1, la réaction est du premier ordre. On connaît des réactions d'ordre zéro. 2, record 1, French, - ordre%20d%27une%20r%C3%A9action
Record number: 1, Textual support number: 1 CONT
L'ordre d'une réaction, et par conséquent son mode de détermination, dépend du paramètre en fonction duquel on l'examine : l'ordre peut être rapporté soit à la concentration, soit au temps. Dans le premier cas (concentration), on calcule la vitesse initiale de la réaction en fonction de différentes valeurs de la concentration initiale de la substance en réaction. Dans le second cas (temps) on mesure la vitesse à différents temps de la réaction. 3, record 1, French, - ordre%20d%27une%20r%C3%A9action
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, - ordre%20d%27une%20r%C3%A9action
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-01-11
Record 2, English
Record 2, Subject field(s)
- Biological Sciences
Record 2, Main entry term, English
- zero-order reaction
1, record 2, English, zero%2Dorder%20reaction
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Reaction for which reaction rate is independent of the concentrations of the reactants; for example, a photochemical reaction in which the rate is determined by the intensity of light. 1, record 2, English, - zero%2Dorder%20reaction
Record number: 2, Textual support number: 1 CONT
In the case of a zero-order reaction, the enzyme is completely saturated with substrate, and the rate depends only on the concentration of the catalyst or on some factor other than the concentration of the molecular species undergoing reaction. Many catalyzed reactions are zero order with respect to the reactants. 2, record 2, English, - zero%2Dorder%20reaction
Record 2, French
Record 2, Domaine(s)
- Sciences biologiques
Record 2, Main entry term, French
- réaction d'ordre zéro
1, record 2, French, r%C3%A9action%20d%27ordre%20z%C3%A9ro
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Réaction dans laquelle la quantité de substrat transformé par unité de temps est constante et indépendante de la concentration des substances réagissantes. 2, record 2, French, - r%C3%A9action%20d%27ordre%20z%C3%A9ro
Record number: 2, Textual support number: 1 CONT
Les réactions chimiques peuvent être classées en fonction du nombre de molécules qui réagissent entre elles pour former les produits. Ainsi, pouvons-nous avoir des réactions monomoléculaires, bimoléculaires, trimoléculaires. La classification peut aussi être basée sur des caractères cinétiques, d'après l'ordre de la réaction. Ainsi, pouvons-nous avoir des réactions d'ordre zéro, du premier ordre, du deuxième ordre et du troisième ordre, suivant la nature de la relation entre la vitesse de la réaction et la concentration d'un des réactifs dans des conditions données. 3, record 2, French, - r%C3%A9action%20d%27ordre%20z%C3%A9ro
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1989-12-18
Record 3, English
Record 3, Subject field(s)
- Biological Sciences
Record 3, Main entry term, English
- third-order reaction
1, record 3, English, third%2Dorder%20reaction
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Chemical reaction in which the rate of reaction is determined by the concentration of three reactants. 1, record 3, English, - third%2Dorder%20reaction
Record number: 3, Textual support number: 1 CONT
Chemical reactions are also classified on a kinetic basis, by reaction order, and we have zero-order, first-order, second-order, and third-order reactions, depending on how the reaction rate is influenced by the concentration of the reactants under a given set of conditions. 2, record 3, English, - third%2Dorder%20reaction
Record 3, French
Record 3, Domaine(s)
- Sciences biologiques
Record 3, Main entry term, French
- réaction du troisième ordre
1, record 3, French, r%C3%A9action%20du%20troisi%C3%A8me%20ordre
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Réaction (...) dont la vitesse est proportionnelle au produit de trois concentrations. 1, record 3, French, - r%C3%A9action%20du%20troisi%C3%A8me%20ordre
Record 3, Spanish
Record 3, Textual support, Spanish
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