ACTIVATION ENERGY

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

The energy that an atomic system must acquire before a process (such as an emission or reaction) can occur

Example:

catalysts are said to reduce the energy of activation during the transition phase of a reaction

Synonyms:

activation energy; energy of activation

Classified under:

Nouns denoting natural phenomena

Hypernyms ("activation energy" is a kind of...):

energy; free energy ((physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs)

Credits