The following links offer some useful revision to support your learning:
BBC Bitesize – Rates of Reaction
BBC Bitesize Video – Rates of Reaction
Factors Affecting Rates of Reaction Practical Video
Average Rate of Reaction Practical Video
Miss Adams Video – Rates of Reaction
To help with your learning, you may also wish to try some of the following resources:
Within the National 5 Chemistry course, you will need to know:
- To follow the progress of chemical reactions, changes in mass, volume and other quantities can be measured.
- Graphs can then be drawn and be interpreted in terms of:
- end-point of a reaction
- quantity of product
- quantity of reactant used
- effect of changing conditions
- Rates of reaction can be increased:
- by increasing the temperature
- by increasing the concentration of a reactant
- by increasing surface area/decreasing particle size
- through the use of a catalyst
- Catalysts are substances that speed up chemical reactions but can be recovered chemically unchanged at the end of the reaction.
- The average rate of a chemical reaction can be calculated, with appropriate units.
- The rate of a reaction can be shown to decrease over time by calculating the average rate at different stages of the reaction.
