- A body may be in one of three states of equilibrium: stable, unstable and neutral.
- Stable Equilibrium
- A body is in stable equilibrium if it returns to its equilibrium position after it has been displaced slightly.
- Unstable Equilibrium
- A body is in unstable equilibrium if it does not return to its equilibrium position and does not remain in the displaced position after it has been displaced slightly.
- Neutral Equilibrium
- A body is in neutral equilibrium if it stays in the displaced position after if has been displaced slightly.
- When the reactants and products are in a constant ratio. The forward reaction and the reverse reactions occur at the same rate when a system is in equilibrium.