Module 4 | Energy
Focus 5: The rate of energy release is affected by factors such as types of reactants
Lesson 1 | Reaction kinetics
Explain the importance of collisions between reacting particles as a criterion for determining reaction rates.
Explain the relationship between temperature and the kinetic energy of particles.
Explain the role of catalysts in changing the activation energy and hence the rate of chemical reaction.
Describe the role of catalysts in chemical reactions, using a named industrial catalyst as an example.
Analyse information from secondary sources to develop models to simulate the role of catalysts in changing the rate of chemical reactions.
Lesson 2 | Investigating rates of reaction
Solve problems, identify data, perform first-hand investigations and gather first-hand data where appropriate, to observe the impact on reaction rates of:
– changing temperature
– changing concentration
– size of solid particles
– adding catalysts
Lesson 3 | Combustion reaction rates
Describe combustion in terms of slow, spontaneous and explosive reactions and explain the conditions under which these occur.
Process information from secondary sources to investigate the conditions under which explosions occur and relate these to the importance of collisions between reacting particles.
Analyse information and use the available evidence to relate the conditions under which explosions occur to the need for safety in work environments where fine particles mix with air.