AP BIOLOGY

Detailed explanation-1: -Activation energy is the minimum energy required to cause a process (such as a chemical reaction) to occur.

Detailed explanation-2: -In chemistry and physics, activation energy is the minimum amount of energy that must be provided for compounds to result in a chemical reaction. The activation energy (Ea) of a reaction is measured in joules per mole (J/mol), kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol).

Detailed explanation-3: -Activation energy is the energy required to break bonds in reactants that prevent the reaction from taking place, some bonds are stronger than others, which is why it takes more energy to break them. This is why all reactions have an activation energy requirement!

Detailed explanation-4: -Activation energy is inversely proportional to the rate of reaction. As the activation energy increases, the rate of reaction decreases. Molecules can only complete the reaction once they have reached the top of the activation energy barrier.