gen-state-activation-energy-precisely-and-explain-why-it-matters-f598

State activation energy precisely and explain why it matters in 2-3 sentences.

**Activation energy** is the minimum energy required for reactant molecules to overcome the energy barrier and successfully transform into products during a chemical reaction. It matters because it determines reaction rate—higher activation energy means fewer molecules have sufficient energy to react, resulting in slower reactions. This concept is critical for controlling reactions in applications from industrial catalysis (where catalysts lower activation energy to speed up processes) to biological systems (where enzymes reduce activation barriers to enable life-sustaining reactions at body temperature).