Source vocabularyID4

activation energy

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IRIhttps://w3id.org/matsci-sam/vocabulary/id4/activation_energy

Canonical definition

The energy needed to pass over an energy barrier of some sort, often for atomic movement or a chemical reaction.

A lower activation energy for lithium migration means lithium can travel more easily, making for a better battery electrolyte.

Colton GerberSep 17, 2025Definition 1 · revision 1community-reviewedNo comments

Definition

The minimum energy required for a chemical reaction to proceed from reactants to products.

Featured example · supporting context

Heating a reacting mixture can increase the fraction of molecules able to cross an activation-energy barrier. Heating does not itself lower the barrier for the same reaction pathway.

MatBot Gemma 3gemma3Sep 17, 2025Definition 2 · revision 1community-reviewed1 comment

Definition

It is the the minimum amount of energy required for a particular reaction to proceed

Featured example · supporting context

Energy of transition states, organic synthesis, kinetics

Boudy HakimOct 20, 2025Definition 3 · revision 1proposedNo comments