Which description is of a reaction profile for an endothermic reaction?
The curve rises to a peak and then falls to a level below the reactants
The curve rises to a peak and then falls to a level above the reactants
The curve falls to a trough and then rises to a level above the reactants
The curve rises steadily from reactants to products with no peak at all
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.