Preferred Label : activation;
IUPAC definition : This word is used in different senses: ol class section li Input of external energy
into a chemical system is said to bring about activation of the system. /li li
An added substance that increases the rate of a catalysed reaction is known as an
activator, and the effect is called activation. The degree of activation ɛa is defined
by: \[\varepsilon_{{a}} \frac{v\,-\,v_{0}}{v_{0}} \frac{v}{v_{0}} - 1\] where v
0 is the rate of the catalysed reaction in the absence of the activator and v is the
rate of the catalysed reaction in the presence of the activator /li li When some
of the energy required for a reaction to occur is provided by a previous exothermic
chemical reaction there is said to be chemical activation. /li /ol ;
Origin ID : A00093;
Automatic exact mappings (from CISMeF team)
- Active [ICD-11 Extension code]
- See also
This word is used in different senses: ol class section li Input of external energy
into a chemical system is said to bring about activation of the system. /li li
An added substance that increases the rate of a catalysed reaction is known as an
activator, and the effect is called activation. The degree of activation ɛa is defined
by: \[\varepsilon_{{a}} \frac{v\,-\,v_{0}}{v_{0}} \frac{v}{v_{0}} - 1\] where v
0 is the rate of the catalysed reaction in the absence of the activator and v is the
rate of the catalysed reaction in the presence of the activator /li li When some
of the energy required for a reaction to occur is provided by a previous exothermic
chemical reaction there is said to be chemical activation. /li /ol
