3.7 Energy Distribution 3.7.1 Distribution Graphs LO: I understand what is meant by a distribution diagram

activated complex energy faster Collisions on the right of the Ea (shaded area) have enough energy to form an . activated complex Collisions on the left of Ea don’t have enough . energy faster The larger the shaded area, the the reaction rate. LO: I understand what is meant by a distribution diagram.

3.7.2 Concentration and Temperature LO: I understand how concentration and temperature affect a distribution diagram.

With increased concentration: more there are molecules present. more molecules have energy than Ea. greater the rate of reaction is . faster LO: I understand how concentration and temperature affect a distribution diagram.

With increased temperature: the kinetic energy of the molecules . increases the graph spreads to the . right greater more molecules have energy than Ea. faster the rate of reaction is . LO: I understand how concentration and temperature affect a distribution diagram.

3.7.3 Catalytic Effect LO: I understand how a catalyst affects a distribution diagram.

lower larger greater faster Using a catalyst: the activation energy is . lower the shaded area is . larger more molecules have energy than Ea. greater faster the rate of reaction is . LO: I understand how concentration and temperature affect a distribution diagram.