Question

23 multiple choice 2 points the difference in energy between reactants and the transition state is known as ______. endothermic energy activation energy enthalpy energy exothermic energy

Explanation:

Activation energy is the minimum energy that reactants must possess to reach the transition - state and undergo a chemical reaction. It is the energy difference between reactants and the transition state. Endothermic and exothermic refer to heat absorption and release in a reaction overall, and enthalpy is a broader thermodynamic property not specifically this energy difference.

Answer:

B. activation energy