6.1/R2.2.4 Define the Term Activation Energy [SL IB Chemistry}

Activation Energy is defined as the minimum energy required for a reaction to occur. Essentially it is the height of the bump on an energy diagram. A high Ea means the reaction is unlikely or slow - a lot of energy must be added to start this reaction.
SL will see Ea again in the Boltzmann Distribution,
HL in the Arrhenius Equation.

[Chosinn]

So where do Enzymes come in? I forgot what I learned in that section of Biology :l