Key Facts: Endothermic Reactions
Part of Endothermic Reactions · GCSE GCSE Chemistry revision
This key facts covers Key Facts: Endothermic Reactions within Endothermic Reactions for GCSE Chemistry. Revise Endothermic Reactions in Energy Changes for GCSE Chemistry with 20 exam-style questions and 14 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 7 of 12 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 7 of 12
Practice
20 questions
Recall
14 flashcards
📌 Key Facts: Endothermic Reactions
- Temperature decreases — the reaction mixture and surroundings get colder
- Energy is absorbed — transferred from surroundings into reaction
- ΔH is positive — enthalpy (energy change) is greater than zero (e.g., ΔH = +178 kJ/mol)
- Energy profile goes up — products higher than reactants on diagram
- Everyday uses: Sports cold packs, some cooking processes
- Often need continuous heating — thermal decomposition requires heat input
Keep building this topic
Read this section alongside the surrounding pages in Endothermic Reactions. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Endothermic Reactions
In an endothermic reaction, energy is:
Explain why a sports cold pack becomes cold when activated.
Quick Recall Flashcards
20 questions on Endothermic Reactions — practise free
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