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 **
   • KS3 Biology  
   • KS3 Chemistry  
   • GCSE Maths (9-1)  
   • GCSE Biology (9-1)  
   • GCSE Chemistry (9-1)  
   • GCSE Physics (9-1)  
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