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What is Le Chatelier's principle?

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Question: What is Le Chatelier\'s principle?

Options:

  1. A system at equilibrium will shift to counteract changes.
  2. The rate of a reaction is proportional to the concentration of reactants.
  3. Energy is conserved in chemical reactions.
  4. The entropy of a system always increases.

Correct Answer: A system at equilibrium will shift to counteract changes.

Solution: 

Le Chatelier\'s principle states that if a system at equilibrium is subjected to a change, the system will adjust to counteract that change.

What is Le Chatelier's principle?

Practice Questions

Q1
What is Le Chatelier's principle?
  1. A system at equilibrium will shift to counteract changes.
  2. The rate of a reaction is proportional to the concentration of reactants.
  3. Energy is conserved in chemical reactions.
  4. The entropy of a system always increases.

Questions & Step-by-Step Solutions

What is Le Chatelier's principle?
  • Step 1: Understand that a system at equilibrium is stable, meaning the forward and reverse reactions happen at the same rate.
  • Step 2: Recognize that a change can be anything like a change in concentration, temperature, or pressure.
  • Step 3: Know that when a change occurs, the system will try to adjust itself to reduce the effect of that change.
  • Step 4: For example, if you add more reactants, the system will produce more products to balance it out.
  • Step 5: This adjustment continues until a new equilibrium is reached.
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