Question detail
According to Le Chatelier's Principle, what happens when the pressure is increased in a gaseous equilibrium with unequal numbers of molecules on each 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. The equilibrium shifts towards the side with more molecules of gas.
- B. The equilibrium shifts towards the side with fewer molecules of gas.
- C. The equilibrium remains unchanged.
- D. The reaction rate increases without affectingthe equilibrium.
Answer
The equilibrium shifts towards the side with fewer molecules of gas.
Explanation
The correct answer is The equilibrium shifts towards the side with fewer molecules of gas.. This answer directly addresses the question: According to Le Chatelier's Principle, what happens when the pressure is increased in a gaseous equilibrium with unequal numbers of molecules on each 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
Misunderstanding Pressure Effects
Students often think that increasing pressure will always increase the rate of reaction rather than shifting the equilibrium position.
Remember that increasing pressure shifts the equilibrium towards the side with fewer gas molecules, which may not necessarily increase the reaction rate.
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