Question detail
Which of the following statements is true regarding the effect of gas 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 decreases the rate of reaction
- B. Lower pressure increases the rate of reaction
- C. Higher pressure usually increases the rate of reaction
- D. Pressure has no effect on reaction rates
Answer
Higher pressure usually increases the rate of reaction
Explanation
The correct answer is Higher pressure usually increases the rate of reaction. This answer directly addresses the question: Which of the following statements is true regarding the effect of gas 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 gas pressure has no effect on reaction rate.
Explain that increasing gas pressure reduces the volume available for gas molecules, leading to more frequent collisions and a faster reaction rate.
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