Grade 11 Chemistry: Reaction Rates
This worksheet covers key concepts related to reaction rates in Grade 11 Chemistry, including factors affecting reaction rates and methods of measurement.
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Grade 11 Chemistry: Reaction Rates
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Read each question carefully and provide your best answer. Show all your work for calculations.
1. Which of the following factors generally increases the rate of a chemical reaction?
Decreasing temperature
Decreasing surface area
Increasing concentration of reactants
Adding an inhibitor
2. What is the role of a catalyst in a chemical reaction?
To increase the activation energy
To be consumed in the reaction
To provide an alternative reaction pathway with lower activation energy
To shift the equilibrium position of the reaction
3. The minimum amount of energy required for a chemical reaction to occur is called the .
4. Increasing the surface area of a solid reactant will generally the reaction rate.
5. Explain how temperature affects the rate of a chemical reaction, referring to collision theory.
6. A reaction with a high activation energy will always proceed slowly.
True
False
Match each term on the left with its correct definition on the right.
7. Collision Theory
a. A substance that speeds up a reaction without being consumed.
8. Catalyst
b. States that reactant particles must collide with sufficient energy and correct orientation.