Asked in PMC Practice Test 28 (2021) 2021Moderate

Le Chatelier's Principle is about?

Correct answer: C. Equilibrium Mixture.

  • A. Reaction Mixture.
  • B. Reactants.
  • C. Equilibrium Mixture.
  • D. Products.

Explanation

Le Chatelier's principle is a fundamental principle of chemical equilibrium that predicts the effect of a change in conditions on a system at equilibrium. It states that if a system at equilibrium is subjected to a change in temperature, pressure, or concentration of reactants or products, the system will adjust in such a way as to counteract the change and re-establish equilibrium. So, option C is correct.

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About Le Chatelier's Principle

Le Chatelier's principle predicts how an equilibrium responds when concentration, pressure or temperature changes. Questions apply it to reversible reactions, identify the direction of shift and distinguish genuine equilibrium changes from the effect of a catalyst, which changes the rate of reaching equilibrium but not its position.

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