Define Activation Energy

In a chemistry, biology, or any other science class, the term activation energy may have come up. Activation energy is essential for chemical reactions to occur.

What Is It?

For a chemical reaction to occur, a minimum amount of energy needs to be put in. This energy is the activation energy.

Who Discovered It?

Svante Arrhenius, a Swedish scientist, was the first to use the term activation energy.

Why Is It Important?

The amount of energy put into a chemical reaction needs to be greater than or equal to the activation energy or nothing will happen.

What Is the Unit Used for Activation Energy?

Activation energy is typically given in kilojoules per mole.

Fun Fact

The activation energy for a chemical reaction can be lowered in the presence of a catalyst.