Ways to recognize equilibrium:
Equilibrium can be recognized by the following characteristics:
1. Constant macroscopic properties: Observable properties like color, pressure, and concentration remain constant at equilibrium.
2. Equal forward and reverse reaction rates: The rate of the forward reaction equals the rate of the reverse reaction.
3. Dynamic nature: Molecules continue to react, but there is no net change in the concentrations of reactants and products.
4. Closed system: Equilibrium occurs in a closed system where no substances enter or leave.