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MDCAT Chemistry QUESTION #4355
Question 1
Amount of energy needed to weaken the existing bonds to an extent that can be broken through collision is called:
  • Bond energy
  • Activation energy✔️
  • Average energy
  • Enthalpy
Correct Answer Explanation
Activation energy ($E_a$) is the minimum energy required to break existing bonds and initiate a chemical reaction. It is the energy barrier that reactants must overcome.