Le Chatelier's Principle
For the exothermic reaction N₂(g) + 3H₂(g) ⇌ 2NH₃(g), which change will shift the equilibrium to the right?
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About This Question
- Subject
- chemistry
- Chapter
- equilibrium
- Topic
- le chatelier's principle
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Removing NH₃
Le Chatelier's Principle states that if a system at equilibrium is disturbed, the system will shift its position to counteract the disturbance.
- Removing Ammonia (NH3): The system tries to produce more to compensate for the loss, shifting the equilibrium to the right.
- Increasing Temperature: For an exothermic reaction, heat is a product. Increasing T shifts equilibrium to the left (reversing the reaction).
- Decreasing Pressure: Shifts equilibrium towards the side with more moles of gas (left has 4, right has 2). Shifts to the left.
- Adding Catalyst: Affects only the rate of reaching equilibrium, not the position.
This medium difficulty chemistry question is from the chapter equilibrium, covering the topic of le chatelier's principle. It appeared in the 2025 exam.
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