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Rate of Reaction
Card 1: What is meant by rate of reaction?
Rate of Reaction
Rate of reaction is defined as the change in the amount of reactants or products in a chemical reaction per unit time. It means ‘how fast is the reaction’ or 'the speed of the reaction'.
- Fast Reaction ---- High rate
- Slow Reaction ---- Low rate
Card 2: Give some examples of fast reaction.
Fast Reaction
- Combustion
- Reaction between reactive metal and water
- Reaction between metal carbonate and acid
- Double decomposition
Card 3: Give some examples of slow reaction.
Card 4: State the two equations used to determine the average rate of reaction.
Card 5: Sketch the Graph of Amount of Reactant over Time
Graph of Amount of Reactant over Time
If the reactant finish reacts:
If the reactant is in excess (not finish reacts)
Card 6: Sketch the Graph of Amount of Product over Time
Card 7: Describe how the instantaneous rate of raction can be determined.
Measuring Rate of Reaction of an Instant
- The rate of reaction at a particular time is called the instantaneous rate.
- The instantaneous rate of a reaction is equal to the gradient of tangent at a particular time.
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