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In a reaction at equilibrium, what is the effect of decreasing the volume of the

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Question: In a reaction at equilibrium, what is the effect of decreasing the volume of the system?

Options:

  1. Shifts the equilibrium to the side with more moles of gas
  2. Shifts the equilibrium to the side with fewer moles of gas
  3. No effect on the equilibrium
  4. Increases the temperature

Correct Answer: Shifts the equilibrium to the side with fewer moles of gas

Solution: 

Decreasing the volume increases the pressure, and according to Le Chatelier\'s Principle, the equilibrium will shift to the side with fewer moles of gas to counteract the change.

In a reaction at equilibrium, what is the effect of decreasing the volume of the

Practice Questions

Q1
In a reaction at equilibrium, what is the effect of decreasing the volume of the system?
  1. Shifts the equilibrium to the side with more moles of gas
  2. Shifts the equilibrium to the side with fewer moles of gas
  3. No effect on the equilibrium
  4. Increases the temperature

Questions & Step-by-Step Solutions

In a reaction at equilibrium, what is the effect of decreasing the volume of the system?
  • Step 1: Understand that a reaction at equilibrium means the forward and reverse reactions are happening at the same rate.
  • Step 2: Know that decreasing the volume of the system means the space for the gases is getting smaller.
  • Step 3: Realize that when the volume decreases, the pressure inside the system increases.
  • Step 4: Remember Le Chatelier's Principle, which states that if a change is made to a system at equilibrium, the system will adjust to counteract that change.
  • Step 5: Identify that increasing pressure will cause the equilibrium to shift towards the side of the reaction that has fewer moles of gas.
  • Step 6: Conclude that by decreasing the volume, the equilibrium will shift to the side with fewer gas molecules to reduce the pressure.
  • Le Chatelier's Principle – A principle stating that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.
  • Gas Laws – The relationship between pressure, volume, and temperature of gases, particularly how changes in volume affect pressure.
  • Equilibrium Shifts – Understanding how changes in concentration, pressure, or temperature affect the position of equilibrium in a chemical reaction.
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