AP Chemistry Unit 7.1 Introduction to Equilibrium

Introduction to Equilibrium

  • Chemical equilibrium: when the rates of the forward reaction and the rates of the reverse reaction are equal (there is no net change in the concentrations of reactants and products)
    • Notes:
      • Although the rate of the forward reaction equals the rate of the reverse reaction, this does not mean that the amounts of products equals the amount of reactants
      • The reaction has not stopped, but the their concentrations are changing at a constant rate
  • Heterogeneous equilibria: equilibria that involve more than one phase
  • Homogeneous equilibria: systems in the gas phase, where all reactants and products are gases
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