← Chemistry / 2 Physical Chemistry
2.3 Reaction Rates
Chemistry · Grade 11 · 40 lessons in the design
What you will be able to do
- explain the collision theory in chemical reactions
- determine the rate of reactions in chemical processes
- examine the factors that affect the rate of chemical reaction
- assess the factors that affect the position of equilibrium
- appreciate the role of equilibrium in industrial processes
Key questions
“Why do some reactions happen in seconds while others take days or even years?”
Lessons
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Why reaction rates differ
40 min · 1 practice tasks · quizExplain that reactions take different times.
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Collision theory
40 min · 1 practice tasks · quizExplain reaction rate using collision theory.
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Activation energy
40 min · 1 practice tasks · quizExplain activation energy.
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Energy profile diagrams
40 min · 1 practice tasks · quizRead energy profile diagrams.
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Measuring the rate of reaction
40 min · 1 practice tasks · quizMeasure the rate of a reaction.
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Rate graphs
40 min · 1 practice tasks · quizRead graphs of amount against time.
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Average and instantaneous rate
40 min · 1 practice tasks · quizFind average and instantaneous rates from a graph.
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Physical changes that show progress
40 min · 1 practice tasks · quizList the physical changes that indicate a reaction.
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Effect of concentration
40 min · 1 practice tasks · quizExplain how concentration affects the rate.
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A concentration experiment
40 min · 1 practice tasks · quizDescribe and analyse a concentration experiment.
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Effect of temperature
40 min · 1 practice tasks · quizExplain how temperature affects the rate.
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A temperature experiment
40 min · 1 practice tasks · quizDescribe and analyse a temperature experiment.
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Effect of surface area
40 min · 1 practice tasks · quizExplain how surface area affects the rate.
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A surface-area experiment
40 min · 1 practice tasks · quizDescribe and analyse a surface-area experiment.
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Effect of a catalyst
40 min · 1 practice tasks · quizExplain how a catalyst affects the rate.
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Catalysts and energy profiles
40 min · 1 practice tasks · quizShow a catalyst on an energy profile.
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Effect of pressure
40 min · 1 practice tasks · quizExplain how pressure affects the rate.
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Effect of light
40 min · 1 practice tasks · quizExplain how light affects the rate.
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Reversible and irreversible reactions
40 min · 1 practice tasks · quizDistinguish reversible from irreversible reactions.
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Reversible changes in the laboratory
40 min · 1 practice tasks · quizDescribe reversible changes using four examples.
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Dynamic equilibrium
40 min · 1 practice tasks · quizExplain dynamic equilibrium.
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Characteristics of dynamic equilibrium
40 min · 1 practice tasks · quizList the characteristics of dynamic equilibrium.
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Le Chatelier principle
40 min · 1 practice tasks · quizState and apply Le Chatelier principle.
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Equilibrium and concentration
40 min · 1 practice tasks · quizExplain the effect of concentration on equilibrium.
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Equilibrium and pressure
40 min · 1 practice tasks · quizExplain the effect of pressure on equilibrium.
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Equilibrium and temperature
40 min · 1 practice tasks · quizExplain the effect of temperature on equilibrium.
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Equilibrium position and yield
40 min · 1 practice tasks · quizLink the equilibrium position to the yield.
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An equilibrium experiment
40 min · 1 practice tasks · quizInvestigate an equilibrium with a colour change.
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The Haber process
40 min · 1 practice tasks · quizDescribe the Haber process for making ammonia.
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Conditions in the Haber process
40 min · 1 practice tasks · quizExplain the conditions chosen for the Haber process.
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The Contact process
40 min · 1 practice tasks · quizDescribe the Contact process for making sulphuric acid.
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Conditions in the Contact process
40 min · 1 practice tasks · quizExplain the conditions chosen for the Contact process.
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The Ostwald process
40 min · 1 practice tasks · quizDescribe the Ostwald process for making nitric acid.
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Conditions in the Ostwald process
40 min · 1 practice tasks · quizExplain the conditions chosen for the Ostwald process.
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Optimising industrial conditions
40 min · 1 practice tasks · quizExplain how industry chooses compromise conditions.
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Catalysts in industry
40 min · 1 practice tasks · quizExplain the role of catalysts in industry.
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Importance of equilibrium in industry
40 min · 1 practice tasks · quizExplain why equilibrium matters in industry.
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Conservation and saving in industry
40 min · 1 practice tasks · quizLink equilibrium control to conservation and saving.
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Reviewing reaction rates
40 min · 1 practice tasks · quizReview rates and the factors that affect them.
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Reviewing equilibrium and applications
40 min · 1 practice tasks · quizReview equilibrium and the industrial applications.