For the equilibrium 2A(g) ⇌ B(g) + C(g), if the volume of the container is decre

Practice Questions

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

Questions & Step-by-Step Solutions

For the equilibrium 2A(g) ⇌ B(g) + C(g), if the volume of the container is decreased, what will happen?
Correct Answer: The equilibrium will shift to the right side (B and C).
  • Step 1: Understand that the reaction is at equilibrium, meaning both the forward and reverse reactions are happening at the same rate.
  • Step 2: Identify the reaction: 2A(g) ⇌ B(g) + C(g).
  • Step 3: Count the number of gas molecules on each side of the equation. The left side (reactants) has 2 moles of gas (2A), and the right side (products) has 2 moles of gas (1B + 1C).
  • Step 4: Recognize that decreasing the volume of the container increases the pressure inside the container.
  • Step 5: Apply Le Chatelier's principle, which states that if a system at equilibrium is disturbed, it will shift to counteract the disturbance.
  • Step 6: 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 the change in volume.
  • Le Chatelier's Principle – This principle states that if an external change is applied to a system at equilibrium, 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 in equilibrium reactions.
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