GCSE Chemistry – Exothermic & Endothermic Reactions – Reaction Profiles | Activation Energy

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*** WHAT’S COVERED ***
1. Energy in Chemical Reactions
* Different chemicals store different amounts of energy within their bonds.
* The overall energy change depends on the difference between the energy in reactants and products.
2. Exothermic Reactions
* Reactions that transfer energy to the surroundings, usually in the form of heat.
* The products have less energy than the reactants.
* Examples include combustion, neutralisation, and oxidation reactions.
3. Endothermic Reactions
* Reactions that take in energy from the surroundings.
* The products have more energy than the reactants.
* An example is the thermal decomposition of calcium carbonate.
4. Reaction Profiles
* How to draw and interpret reaction profile diagrams, showing the relative energies of reactants and products.
5. Activation Energy
* The minimum amount of energy required for reactant particles to collide and react.
* How to represent activation energy on both exothermic and endothermic reaction profile diagrams.

*** CHAPTERS ***
0:00 Introduction
0:23 Energy Stored in Chemical Bonds
1:04 Exothermic Reactions
2:35 Endothermic Reactions
3:35 Activation Energy
5:00 Labelling Reaction Profiles

*** PLAYLISTS ***

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