Chem exam 3

• Dynamic chemical equilibrium


  Relates to the rate of reactions
• Calculating and interpreting the equilibrium constant (K)

  1. Define dynamic chemical equilibrium

  2. Apply Le Chatelier's Principle to predict the effect of changing temperature, pressure, and concentration on systems at equilibrium

  3. Describe and differentiate between acids and bases by writing chemical equations and use calculations with K, to evaluate pH, pOH and equilibrium
• If Q < K


  The reaction will proceed in the forward direction
• If Q > K


  The reaction will proceed in the reverse direction
• If Q = K


  The reaction is at equilibrium
• The rate of the forward reaction is equal to the rate of the reverse reaction at equilibrium
• The concentrations of the reactants and products remain constant at equilibrium
• The amount of reactants is not necessarily equal to the amount of products at equilibrium
• Physical states included in the K expression

  • (aq)
  • (g)
• Physical states not included in the K expression


  • (s)