Question

Define Activation Energy...​

Answer 1

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Activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport. In transition-state theory, the activation energy is the difference in energy content between atoms or molecules in an activated or transition-state configuration and the corresponding atoms and molecules in their initial configuration. 

Answer 2

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activation energy means very small amount of energy that must be provided to compound to result in chemical reaction and it is measured in joule per mole and kilo joule per mole.