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Exothermic and endothermic reactions
Explain that an exothermic reaction releases thermal energy to the environment, resulting in a rise in the surrounding temperature.
6
Objectives
60
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42
Questions
90 min
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CambridgeIGCSECombined ScienceChemical energetics
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Exothermic and endothermic reactions outcomes6 objectives
- Explain that an exothermic reaction releases thermal energy to the environment, resulting in a rise in the surrounding temperature.
- Explain that an endothermic reaction absorbs thermal energy from the environment, causing a drop in the surrounding temperature.
- Analyze reaction pathway diagrams that illustrate both exothermic and endothermic reactions.
- Define activation energy as the minimum energy required for colliding particles to initiate a reaction.
- Create and label reaction pathway diagrams for exothermic and endothermic reactions, including reactants, products, overall energy change, and activation energy.
- Recognize that breaking bonds is an endothermic process while forming bonds is an exothermic process.
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