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In a reaction at equilibrium, what happens if the pressure is increased by decre

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Question: In a reaction at equilibrium, what happens if the pressure is increased by decreasing the volume?

Options:

  1. Shifts to the side with more moles of gas
  2. Shifts to the side with fewer moles of gas
  3. No effect
  4. Reaction stops

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

Solution: 

Increasing the pressure by decreasing the volume shifts the equilibrium towards the side with fewer moles of gas, according to Le Chatelier\'s Principle.

In a reaction at equilibrium, what happens if the pressure is increased by decre

Practice Questions

Q1
In a reaction at equilibrium, what happens if the pressure is increased by decreasing the volume?
  1. Shifts to the side with more moles of gas
  2. Shifts to the side with fewer moles of gas
  3. No effect
  4. Reaction stops

Questions & Step-by-Step Solutions

In a reaction at equilibrium, what happens if the pressure is increased by decreasing the volume?
  • Step 1: Understand that a chemical reaction can reach a state called equilibrium, where the forward and reverse reactions occur at the same rate.
  • Step 2: Recognize that gases occupy space, and their pressure is related to the volume they are in.
  • Step 3: Know that if you decrease the volume of the container, the pressure of the gas increases.
  • Step 4: Remember Le Chatelier's Principle, which states that if a system at equilibrium is disturbed, it will shift to counteract the disturbance.
  • Step 5: When pressure increases (due to decreased volume), the equilibrium will shift towards the side of the reaction that has fewer moles of gas.
  • Step 6: Identify which side of the reaction has fewer moles of gas to determine the direction of the shift.
  • Le Chatelier's Principle – When a system at equilibrium is subjected to a change in pressure, temperature, or concentration, the system will adjust to counteract that change and restore a new equilibrium.
  • Equilibrium Position – The position of equilibrium can shift towards the side with fewer moles of gas when pressure is increased.
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