A reaction has the energy levels shown in the table.
| Substance | Energy (kJ/mol) |
|---|---|
| Reactants | 310 |
| Products | 248 |
A student says that the reaction takes in 62 kJ/mol from the surroundings, because the reactant and product levels are 62 kJ/mol apart. Evaluate this claim.
85 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.