Question detail
How does decreasing the pressure affect a gaseous equilibrium with more molecules on one side?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reversible reactions and dynamic equilibrium
Question
- A. It shifts equilibrium towards the side with fewer molecules
- B. It shifts equilibrium towards the side with more molecules
- C. It has no effect on equilibrium
- D. It increases the rate of the forward reaction
Answer
It shifts equilibrium towards the side with more molecules
Explanation
The correct answer is It shifts equilibrium towards the side with more molecules. This answer directly addresses the question: How does decreasing the pressure affect a gaseous equilibrium with more molecules on one side? 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
Understanding Closed Systems
Students often forget that a closed system prevents the escape of reactants or products, which is essential for maintaining equilibrium.
Emphasize that a closed system allows for accurate predictions of equilibrium shifts because it keeps the concentrations of reactants and products constant.
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