Question detail
Which of the following statements is true regarding the effect of pressure on reaction rates?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Rate of reaction
Question
- A. Higher pressure results in fewer collisions
- B. Higher pressure results in more collisions
- C. Pressure has no impact on reaction rates
- D. Only temperature affects reaction rates
Answer
Higher pressure results in more collisions
Explanation
The correct answer is Higher pressure results in more collisions. This answer directly addresses the question: Which of the following statements is true regarding the effect of pressure on reaction rates? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.
Common mistake
Misunderstanding Pressure Effects
Students often think that increasing pressure will always increase the rate of reaction without considering the specific reaction conditions.
Emphasize that increasing pressure increases the concentration of gas molecules, leading to more frequent collisions, which generally increases the reaction rate.
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