Equilibrium

• What is a reversible reaction?


  The reactants turn into products and the products turn into reactants
• Which symbol shows a reversible reaction?


  The double arrow (⇌)
• What is dynamic equilibrium?


  It is the point in a reversible reaction when the rates of the forward and reverse reactions are the same
• What are the three reaction conditions that can be changed in a dynamic equilibrium?


  Concentration

  Temperature

  Pressure
• What is Le Chatelier's principle?

  It states that the position of equilibrium will shift to oppose external changes
• What is the effect of increasing the concentration of reactants on a reaction at dynamic equilibrium?


  It favours the forward reaction
• What is the effect of decreasing the concentration of products on a reaction at dynamic equilibrium?


  It favours the forward reaction
• What is the effect of increasing pressure on a reaction at dynamic equilibrium?


  It favours the reaction that leads to the fewest molecules
• What is the effect of decreasing pressure on a reaction at dynamic equilibrium?


  It favours the reaction that leads to the most molecules
• What is the effect of increasing temperature on a reaction at dynamic equilibrium?


  It favours the endothermic reaction
• What is the effect of decreasing temperature on a reaction at dynamic equilibrium?


  It favours the exothermic reaction