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For a reaction at equilibrium, what happens if the concentration of a reactant i

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Question: For a reaction at equilibrium, what happens if the concentration of a reactant is increased?

Options:

  1. The equilibrium shifts to the right
  2. The equilibrium shifts to the left
  3. The equilibrium remains unchanged
  4. The reaction stops

Correct Answer: The equilibrium shifts to the right

Solution: 

According to Le Chatelier\'s principle, increasing the concentration of a reactant will shift the equilibrium position to the right, favoring the formation of products.

For a reaction at equilibrium, what happens if the concentration of a reactant i

Practice Questions

Q1
For a reaction at equilibrium, what happens if the concentration of a reactant is increased?
  1. The equilibrium shifts to the right
  2. The equilibrium shifts to the left
  3. The equilibrium remains unchanged
  4. The reaction stops

Questions & Step-by-Step Solutions

For a reaction at equilibrium, what happens if the concentration of a reactant is increased?
  • Step 1: Understand that a chemical reaction can reach a state called equilibrium, where the rate of the forward reaction equals the rate of the reverse reaction.
  • Step 2: Recognize that in a reaction, there are reactants (starting materials) and products (end materials).
  • Step 3: Know that Le Chatelier's principle states that if a change is made to a system at equilibrium, the system will adjust to counteract that change.
  • Step 4: If the concentration of a reactant is increased, the system will try to reduce that concentration.
  • Step 5: To reduce the concentration of the added reactant, the equilibrium will shift to the right, meaning more products will be formed.
  • Step 6: As a result, the formation of products is favored when the concentration of a reactant is increased.
  • Le Chatelier's Principle – This principle states 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.
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