LESSON 9.4 – EQUILIBRIUM

WHAT IS EQUILIBRIUM?

Today’s Learning Targets

  • LT 8.6 – I can describe what equilibrium is and relate it to rates of the forward and reverse reactions.

I. Equilibrium

  • Reactions can go in both directions
  • Equilibrium – Established when the rate of forward reaction equal the rate of the reverse reaction.
  • Therefore, while the reaction continues to occur, the concentration of products and reactants does not change.

II. Equilibrium Expression

2HgO (s) ⇌ 2Hg (l) + O2 (g)

Equilibrium Arrow

III. Dynamic Equilibrium

  • Reactions do not stop when equilibrium is achieved.
  • The rate of the forward and reverse reaction are equal, but still occurring.
  • This is dynamic equilibrium where the reaction is still occurring, but equilibrium is maintained.
9.4.Equilibrium.ppt - Google Slides