A student investigates the temperature change when dilute hydrochloric acid reacts with sodium hydroxide solution. The student is given a polystyrene cup with a lid, a measuring cylinder and a thermometer.
Describe a method the student could use to find the temperature rise for this reaction.
Explain why the reaction is carried out in a polystyrene cup with a lid rather than in an open glass beaker.
39 exam-style questions on AQA GCSE Chemistry 5.1 Exothermic and endothermic reactions, covering 5.1.1 Energy transfer during exothermic and endothermic reactions, 5.1.2 Reaction profiles, and 5.1.3 The energy change of reactions. Each one has a worked solution and a mark scheme showing where the marks go.