Temperature and Reversible Reactions

• What principle is discussed in relation to changes in equilibrium?

  • Le Chatelier's principle
  • States that a system at equilibrium will counteract changes made to its conditions
• What should you be able to describe by the end of this video?

  Describe the effect of change in temperature on a reversible reaction at equilibrium.
• What type of students is this video intended for?

  Higher-tier students.
• What happens to the temperature of the system when the forward reaction is exothermic?

  The temperature of the system increases.
• What is the nature of the reverse reaction if the forward reaction is exothermic?

  The reverse reaction is endothermic.
• What happens to the temperature of the system during the reverse reaction?

  The temperature of the system decreases.
• What happens to the equilibrium when the temperature of the system is increased?

  • Equilibrium shifts to the left
  • This reduces the temperature
  • The amount of $NO_2$ increases
  • The amount of $N_2O_4$ decreases
• What happens to the equilibrium when the temperature of the system is decreased?

  • Equilibrium shifts to the right
  • This increases the temperature
  • The amount of $N_2O_4$ increases
  • The amount of $NO_2$ decreases
• What type of questions can you expect in the exam regarding temperature effects on reversible reactions?

  Questions on the effect of temperature on reversible reactions.