The quantity of energy required to start a chemical reaction is known as activation energy. The example issue that follows shows how to calculate a reaction's activation energy given reaction rate constants at various temperatures.
The bare minimum additional energy needed by a reactive molecule to transform into a product is known as activation energy. It is also known as the minimum energy required to energize or activate molecules or atoms in order for them to engage in a chemical reaction or transformation.
In order for molecules to interact, they must be placed close enough to one another, pointed in a way that permits them to join, and powered by enough energy to form a chemical covalent bond. The energy needed to form this link is known as the activation energy.