Activation Energy Is

Question

Activation energy is
A) the energy of motion.
B) stored energy.
C) the same as heat energy.
D) the energy in chemical bonds.
E) the energy needed to start a reaction.

Accepted Answer

Activation energy refers to the minimum amount of energy required to start a chemical reaction. It is the energy barrier that must be overcome for reactant molecules to transform into product molecules. Once the activation energy is overcome, the reaction can continue on its own. Therefore, the correct answer is E) the energy needed to start a reaction.