The activation energy in a chemical reaction is defined as

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the difference in energies of reactants and products

the sum of energies of reactants and products

the difference in energy of intermediate complex with the average energy of reactants and products

the difference in energy of intermediate complex and the average energy ofreactants

answer is D.

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Detailed Solution

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 minimal energy required to energise or activate molecules or atoms in order for them to engage in a chemical reaction or transformation. and it is the discrepancy between the average energy of the reactants and the energy of the intermediate activated complex.

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