Le Chatelier's Principle Worksheet
Explore Le Chatelier's Principle and its effects on chemical equilibrium with this worksheet for grade 9 science students.
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Le Chatelier's Principle Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following best describes Le Chatelier's Principle?
When a system at equilibrium is disturbed, it will shift to a new equilibrium.
Chemical reactions always proceed to completion.
The rate of reaction is independent of concentration.
Catalysts are consumed in a chemical reaction.
2. Consider the reaction: N₂(g) + 3H₂(g) ⇌ 2NH₃(g) + Heat. If the temperature is increased, how will the equilibrium shift?
To the right, favoring products.
To the left, favoring reactants.
No change in equilibrium position.
The reaction will stop.
3. According to Le Chatelier's Principle, if the concentration of a reactant is increased, the equilibrium will shift to the to consume the added reactant.
4. For an exothermic reaction, increasing the temperature will shift the equilibrium to the , favoring the formation of .
5. Adding a catalyst to a system at equilibrium will shift the equilibrium position.
True
False
6. Decreasing the volume of a gaseous reaction at equilibrium will shift the equilibrium towards the side with fewer moles of gas.
True
False
7. Consider the following reaction at equilibrium: 2SO₂(g) + O₂(g) ⇌ 2SO₃(g). Explain what happens to the equilibrium if more O₂(g) is added to the system.
8. For the endothermic reaction: A(g) + B(g) ⇌ C(g). How would decreasing the temperature affect the concentration of product C?