‹ GCSE Combined and Separate Science
Energy changes
Exothermic and endothermic reactions, the temperature change practical, reaction profiles, bond energies, cells and fuel cells.
Start: Exothermic and endothermic reactions About 15 min, free
Lessons
Practise and test
By the end you can
Classify reactions as exothermic or endothermic and give uses Measure a temperature change and find the end point from a graph Read activation energy and ΔH from a reaction profile Calculate ΔH from bond energies (Higher) Explain cells, batteries and fuel cells (Chemistry only) Revision notes
Specifications AQA 8462 (Chemistry) 4.5AQA 8464 (Combined Trilogy) 5.5Pearson Edexcel 1CH0 and 1SC0 Topic 7 (1CH0 Topic 9 for fuel cells)OCR Gateway J248 and J250 C3.1
Next unit: Rates of reaction and equilibrium Previous unit: Chemical changes: reactivity, acids and electrolysis
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