1. 3.7 Energy Distribution 3.7.1 Distribution Graphs
LO: I understand what is meant by a distribution diagram

2. 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. 3.7.2 Concentration and Temperature
LO: I understand how concentration and temperature affect a distribution diagram.

4. 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.

5. 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.

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

7. 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.