Exothermic & Endothermic ReactionsOxford AQA IGCSE Chemistry: Flashcards
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Define an exothermic reaction.
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- Define an exothermic reaction.
- A reaction that transfers energy to the surroundings, increasing their temperature.
- Define an endothermic reaction.
- A reaction that takes in energy from the surroundings, decreasing their temperature.
- Name three types of exothermic reaction.
- Combustion, oxidation reactions, and neutralisation.
- Name a type of endothermic reaction.
- Thermal decomposition.
- What sign is ΔH for an exothermic reaction?
- Negative.
- What sign is ΔH for an endothermic reaction?
- Positive.
- What does ΔH stand for?
- The overall energy change of a reaction.
- What happens to the temperature of the surroundings in an exothermic reaction?
- It increases.
- What happens to the temperature of the surroundings in an endothermic reaction?
- It decreases.
- Is neutralisation exothermic or endothermic?
- Exothermic.
- Is thermal decomposition exothermic or endothermic?
- Endothermic.