TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

NULL ISOTOPE EFFECT [1 record]

Record 1 1997-09-26

English

Subject field(s)
  • Chemistry
DEF

The absence of isotopic discrimination for rate or equilibrium constants (klight/kheavy = 1 or Klight/Kheavy = 1) ...

OBS

It is more commonly thought of as a null isotope effect, on the grounds that there is zero isotopic effect on the corresponding standard Gibbs energy change. i.e. that an isotope effect exists only when the ratio of rate or equilibrium constants differs from unity.

French

Domaine(s)
  • Chimie
DEF

[...] absence d'effet d'un isotope sur les constantes de vitesse ou d'équilibre (k [indice] léger/k [indice] lourd= 1 ou K [indice] léger/K [indice] lourd = 1) [...]

OBS

[...] on parle plus communément d'«effet isotopique nul», puisqu'il n'y a pas d'effet isotopique sur la différence des énergies de Gibbs standard. En d'autres termes, on considère qu'il y a un effet isotopique que lorsque le rapport des constantes de vitesse ou d'équilibre est différent de l'unité.

Spanish

Save record 1

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: