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How does dilution affect a reaction at equilibrium involving aqueous solutions?

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Question: How does dilution affect a reaction at equilibrium involving aqueous solutions?

Options:

  1. Shifts equilibrium to the right
  2. Shifts equilibrium to the left
  3. No effect on equilibrium
  4. Increases the rate of reaction

Correct Answer: Shifts equilibrium to the left

Solution: 

Dilution decreases the concentration of reactants and products, and according to Le Chatelier\'s Principle, the equilibrium will shift to the left to produce more reactants.

How does dilution affect a reaction at equilibrium involving aqueous solutions?

Practice Questions

Q1
How does dilution affect a reaction at equilibrium involving aqueous solutions?
  1. Shifts equilibrium to the right
  2. Shifts equilibrium to the left
  3. No effect on equilibrium
  4. Increases the rate of reaction

Questions & Step-by-Step Solutions

How does dilution affect a reaction at equilibrium involving aqueous solutions?
  • Step 1: Understand that a reaction at equilibrium has a balance between reactants and products.
  • Step 2: Know that dilution means adding more water to the solution, which decreases the concentration of both reactants and products.
  • Step 3: 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 4: When the concentration of reactants and products decreases due to dilution, the system will try to increase the concentration of reactants.
  • Step 5: Therefore, the equilibrium will shift to the left, meaning it will produce more reactants to restore balance.
  • Le Chatelier's Principle – A principle stating that if a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change and restore a new equilibrium.
  • Equilibrium Shift – The movement of the equilibrium position in response to changes in concentration, which can favor either the formation of reactants or products.
  • Dilution Effects – The process of reducing the concentration of solutes in a solution, which can impact the position of equilibrium in a chemical reaction.
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