Chemical Equilibrium: Concept and Equilibrium Constant
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Questions and Answers

What defines chemical equilibrium?

  • When all reactants are converted to products
  • When the rate of the forward reaction is faster than the reverse reaction
  • When there is no conversion happening
  • When the rates of the forward and reverse reactions are equal (correct)

    • What is the Law of Mass Action?

  • The value of the equilibrium constant changes with temperature
  • The equilibrium constant expression varies at different temperatures
  • The equilibrium constant expression is constant at a given temperature (correct)
  • Equilibrium can only be approached from one direction

    • Which factor does the equilibrium constant, Kc, depend on?

  • Stoichiometric coefficients of reactants and products (correct)
  • Temperature
  • Time taken for the reaction to reach equilibrium
  • Initial concentrations of reactants and products

    • What does Kc represent in a chemical reaction at equilibrium?

    <p>Ratio of product concentrations to reactant concentrations</p> Signup and view all the answers

    Can Kc change if the initial concentrations of reactants and products change?

    <p>No, it remains constant</p> Signup and view all the answers

    What characterizes equilibrium in terms of reactant and product conversion?

    <p>Net conversion from reactants to products is equal to that from products to reactants</p> Signup and view all the answers

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