1. Chemical equilibrium is of two types:
- Homogeneous equilibrium
- Heterogeneous equilibrium.
2. In a homogeneous equilibrium, all the reactants and products are in the same phase
H2(g) + I2(g) ⇌ 2HI(g)
In the above equilibrium H2, I2 and HI are in the gaseous state.
3. If the reactants and products of a reaction in equilibrium are in different phases, then it is calLed heterogeneous equilibrium.
e.g., CaCO3(s) ⇌ CaO(s) + CO3(g)
