Edexcel GCSE Chemistry (1CH0) · EDEXCEL 1CH0
7 Rates of reaction and energy changes
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Rates of reaction and energy changes
- Explain why increasing the temperature of a reaction mixture increases the rate of reactio… (4 marks, Explain)
- A student investigates the rate of reaction between marble chips (calcium carbonate) and h… (4 marks, Explain)
- Combustion is an exothermic reaction. Explain, in terms of bond breaking and bond forming,… (4 marks, Explain)
- Explain why decreasing the surface area of a solid reactant decreases the rate of reaction… (4 marks, Explain)
- Neutralisation is an exothermic reaction. When dilute hydrochloric acid is added to sodium… (4 marks, Explain)
- Explain why increasing the pressure of gaseous reactants increases the rate of reaction. (4 marks, Explain)
- Cold packs are used by athletes to treat injuries. When a cold pack is activated, a chemic… (4 marks, Explain)
- When hand warmers are used, an exothermic reaction occurs inside the pack. Explain, in ter… (4 marks, Explain)
- Explain why the temperature of the surroundings decreases during an endothermic reaction. … (4 marks, Explain)
- A student adds a small piece of solid manganese(IV) oxide to a solution of hydrogen peroxi… (4 marks, Explain)
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