Question

What is activation energy?

• A. It is the minimum amount of energy it takes to start a chemical reaction.
• B. It is the maximum amount of energy it takes to start a chemical reaction.
• C. It is the intermediate compound in a chemical reaction.
• D. It is the energy needed for an exothermic reaction.
• E. It is the energy needed for an endothermic reaction.

Answer 1

Answer: (A)

It is the minimum amount of energy it takes to start a chemical reaction.

Activation Energy:- The minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction

Activation energy may also be defined as the minimum energy required to start a chemical reaction. The activation energy of a reaction is usually denoted by Ea and given in units of kilojoules per mole $\left(kJ/mol\right)$ or kilocalories per mole $\left(kcal/mol\right).$

So option A