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In the reaction: 2A(g) ⇌ B(g) + C(g), if the volume of the container is decrease

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Question: In the reaction: 2A(g) ⇌ B(g) + C(g), if the volume of the container is decreased, what will happen to the equilibrium?

Options:

  1. Shift to the left
  2. Shift to the right
  3. No change
  4. Depends on temperature

Correct Answer: Shift to the left

Solution: 

Decreasing the volume increases the pressure, and the equilibrium will shift to the side with fewer moles of gas, which is the left side in this case.

In the reaction: 2A(g) ⇌ B(g) + C(g), if the volume of the container is decrease

Practice Questions

Q1
In the reaction: 2A(g) ⇌ B(g) + C(g), if the volume of the container is decreased, what will happen to the equilibrium?
  1. Shift to the left
  2. Shift to the right
  3. No change
  4. Depends on temperature

Questions & Step-by-Step Solutions

In the reaction: 2A(g) ⇌ B(g) + C(g), if the volume of the container is decreased, what will happen to the equilibrium?
  • Step 1: Understand that the reaction involves gases: 2A(g) ⇌ B(g) + C(g).
  • Step 2: Identify the number of gas molecules on each side of the reaction. The left side (2A) has 2 moles of gas, and the right side (B + C) has 2 moles of gas as well.
  • Step 3: Recognize that decreasing the volume of the container increases the pressure inside the container.
  • Step 4: Apply Le Chatelier's principle, which states that if a system at equilibrium is disturbed, it will shift to counteract the disturbance.
  • Step 5: Since both sides of the reaction have the same number of moles of gas (2 moles), the equilibrium will not shift to either side based on pressure changes.
  • Le Chatelier's Principle – This principle states that if a system at equilibrium is subjected to a change in conditions (such as pressure, temperature, or concentration), the system will adjust to counteract that change and restore a new equilibrium.
  • Gas Laws – Understanding how changes in volume affect pressure and the behavior of gases is crucial for predicting the direction of equilibrium shifts.
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