Collision Theory Worksheet
A Grade 10 Science worksheet covering the fundamental principles of Collision Theory, including activation energy, effective collisions, and factors affecting reaction rates.
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Collision Theory Worksheet
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Read each question carefully and answer to the best of your ability. Show all work where applicable.
1. According to Collision Theory, for a chemical reaction to occur, reactant particles must:
Be in the same phase of matter.
Collide with sufficient energy and correct orientation.
Have a catalyst present.
Be at absolute zero temperature.
2. What is activation energy?
The energy released during a reaction.
The minimum energy required for a reaction to occur.
The energy of the products.
The energy of the reactants.
3. The rate of a chemical reaction generally increases with an increase in because particles collide more frequently and with greater energy.
4. For a collision to be , the colliding particles must have both sufficient energy and the correct orientation.
5. Increasing the concentration of reactants will decrease the frequency of collisions.
True
False
6. A catalyst works by increasing the activation energy of a reaction.
True
False
7. Explain how increasing the surface area of a solid reactant can increase the rate of a reaction, in terms of Collision Theory.
8. Observe the diagram below, which illustrates two possible collisions between reactant molecules A and B. Which collision (1 or 2) is more likely to lead to a reaction, and why?
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