Episode 4 — Chemical Industries

Rates of Reactions

Learners will be able to:

• Describe the major problem with reactions involving nitrogen from the air. • Explain how collision theory affects the rate of chemical reactions. • Identify the three conditions necessary for a reaction to take place according to collision theory. • Calculate the effect of increasing pressure on the number of collisions per unit time. • Apply the concept of activation energy to explain why exothermic and endothermic reactions require an initial input of energy. • Describe how adding a catalyst affects the rate of chemical reactions.