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activation energy

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English

Noun

Singular
activation energy

Plural
activation energies

activation energy (activation energies)
  1. (Template loop detected: Template:context 1) The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but topheavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced.

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