Le Chatelier's Principle Quiz
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Questions and Answers

Which of the following is NOT a necessary condition for chemical equilibrium?

  • Presence of a catalyst (correct)
  • Constant temperature
  • Equal concentrations of reactants and products
  • Closed system
  • What is the effect of increasing the concentration of a reactant in a reversible reaction at equilibrium?

  • Equilibrium shifts towards the right (forward) (correct)
  • Equilibrium shifts towards the left (reverse)
  • Equilibrium is disrupted
  • No effect on the equilibrium
  • Which of the following is affected by changes in pressure in a reversible reaction at equilibrium?

  • Gaseous equilibria (correct)
  • Solid equilibria
  • Liquid equilibria
  • All types of equilibria
  • What does Le Chatelier's principle state?

    <p>A system at equilibrium readjusts itself to counteract changes</p> Signup and view all the answers

    How does increasing the concentration of a product in a reversible reaction at equilibrium affect the equilibrium?

    <p>Equilibrium shifts towards the left (reverse)</p> Signup and view all the answers

    Study Notes

    Chemical Equilibrium

    • A necessary condition for chemical equilibrium is not reached when the reaction rates are not equal and opposite.

    Effect of Concentration Changes

    • Increasing the concentration of a reactant in a reversible reaction at equilibrium shifts the equilibrium to the right, favoring the forward reaction.
    • Increasing the concentration of a product in a reversible reaction at equilibrium shifts the equilibrium to the left, favoring the reverse reaction.

    Effect of Pressure Changes

    • The yield of the reaction is affected by changes in pressure in a reversible reaction at equilibrium.

    Le Chatelier's Principle

    • Le Chatelier's principle states that when a system in equilibrium is subjected to a change, the equilibrium will shift in a direction that tends to counteract the change.

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    Description

    Test your knowledge of Le Chatelier's Principle and its application to chemical equilibrium. Learn about the necessary conditions for equilibrium and how to recognize it. Explore the effects of catalysts, temperature, pressure, and concentration on reversible reactions at equilibrium.

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