# Describe what happens to the temperature of the surroundings during an exothermic reaction and explain, in terms of energy transfer, why this change occurs. Give one example of an exothermic reaction.

> Cambridge International IGCSE Chemistry (0620) — 5.1 Exothermic and endothermic reactions · Describe · 4 marks

## Mark scheme (4 marks)

1. The temperature of the surroundings increases during an exothermic reaction
2. Energy is released / transferred from the reaction / chemicals to the surroundings
3. The products have less / lower energy than the reactants
4. Correct example of an exothermic reaction

## Key terms

- [exothermic](https://www.gradenine.co.uk/glossary/exothermic)
- [surroundings](https://www.gradenine.co.uk/glossary/surroundings)
- [energy transfer](https://www.gradenine.co.uk/glossary/energy-transfer)

## Related

- [Revision notes for Cambridge International IGCSE Chemistry (0620)](https://www.gradenine.co.uk/learn)
- [How to answer "Describe" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
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Source: [GradeNine](https://www.gradenine.co.uk/q/describe-what-happens-to-the-temperature-515a78b8) · Published by Druglandscape Ltd.