Questions: Rates of reaction and equilibrium
Pick a question type. Each time you get new numbers. Free ones are marked free.
Measuring the rate of a reaction
- Mean rate from a volume of gasCalculate, 3 marks, free
- Mean rate from mass lostCalculate, 3 marks, free
- Mean rate of using up a reactant (standard form)Calculate, 2 marks, free
- Time from a mean rateCalculate, 2 marks, free
- Mean rate between two times from a tableCalculate, 2 marks, free
- Units of rateChoose, 1 mark, free
- Ways of measuring a rateChoose, 1 mark, free
- Mean rate in mol/sCalculate, 3 marks, Plus, Higher tier
Rate graphs and tangents
- Reading a volume-time graphDetermine, 4 marks, free
- Mean rate between two times from a graphCalculate, 3 marks, free
- Which curve shows the faster reactionCompare, 2 marks, free
- What the shape of a rate curve meansChoose, 1 mark, free
- Predicting a new curveChoose, 1 mark, free
- Rate at an instant from a tangentDetermine, 3 marks, Plus, Higher tier
Collision theory and the factors that change a rate
- Linking a factor to collision theoryExplain, 1 mark, Plus
- Surface area to volume ratio of a cubeCalculate, 4 marks, Plus
- Cutting a cube into smaller cubesCalculate, 4 marks, Plus
- What a catalyst doesChoose, 1 mark, Plus
- Activation energy with and without a catalystCalculate, 4 marks, Plus
- Why a higher temperature speeds up a reactionExplain, 4 marks, Plus
- Which change does not speed up a reactionChoose, 1 mark, Plus
- Using the doubling rule of thumbEstimate, 2 marks, Plus
- Spotting the catalyst from resultsDetermine, 3 marks, Plus
Required practical: concentration and rate
- Required practical: the variablesChoose, 3 marks, Plus
- Required practical: putting the method in orderChoose, 1 mark, Plus
- Required practical: rate as 1000 ÷ timeCalculate, 3 marks, Plus
- Required practical: plotting rate against concentrationPlot, 5 marks, Plus
- Required practical: repeats and an anomalyCalculate, 5 marks, Plus
- Required practical: comparing two acids by gas volumeCalculate, 5 marks, Plus
- Required practical: errors and improvementsChoose, 1 mark, Plus
- Required practical: mean and uncertaintyCalculate, 4 marks, Plus
- Plan the disappearing cross practical (6 marks)Describe, 6 marks, Plus
Reversible reactions and dynamic equilibrium
- Energy change of the reverse reactionDetermine, 2 marks, Plus
- Reversible reactionsChoose, 1 mark, Plus
- Energy for a given mass in a reversible reactionCalculate, 4 marks, Plus, Higher tier
- What dynamic equilibrium meansChoose, 1 mark, Plus
- When equilibrium is reached, from a graphDetermine, 3 marks, Plus
Changing the conditions at equilibrium
- Equilibrium and temperatureChoose, 2 marks, Plus, Higher tier
- Equilibrium and pressureChoose, 2 marks, Plus, Higher tier
- Counting molecules of gas on each sideCalculate, 3 marks, Plus, Higher tier
- Equilibrium and concentrationChoose, 2 marks, Plus, Higher tier
- A catalyst and equilibriumChoose, 1 mark, Plus, Higher tier
- Colour changes at equilibriumChoose, 1 mark, Plus, Higher tier
- Explaining the effect of pressure on yieldExplain, 3 marks, Plus, Higher tier
- Temperature: yield against rateChoose, 1 mark, Plus, Higher tier
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