Module 4 | Energy
Focus 5: The rate of energy release is affected by factors such as types of reactants
Lesson 1 | Reaction kinetics
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Explain the importance of collisions between reacting particles as a criterion for determining reaction rates.
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Explain the relationship between temperature and the kinetic energy of particles.
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Explain the role of catalysts in changing the activation energy and hence the rate of chemical reaction.
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Describe the role of catalysts in chemical reactions, using a named industrial catalyst as an example.
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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
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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
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Describe combustion in terms of slow, spontaneous and explosive reactions and explain the conditions under which these occur.
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Process information from secondary sources to investigate the conditions under which explosions occur and relate these to the importance of collisions between reacting particles.
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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.
