C3-Bond Energies

C3-Bond Energies

1. Exothermic - the reactants on a graph are higher than the products formed.

2. Endothermic- the reactants on a graph are lower than the products formed.

3. Activation energy is lowered by catalysts.

   • Activation energy represents the minimum energy needed by reacting particles to break their bonds.
   • A catalyst provides a different pathway for a reaction that has a lower activation energy ( so the reaction happens more easily and quicker.
   • The overall energy change for the reaction remains the same though.

4. On a graph, if a catalyst has been added, the activation energy will be lower than without one and the reaction will be over quicker.