Homogeneous and Heterogeneous Equilibria

Homogeneous Equilibrium :

In homogeneous equilibrium, the reactants and products are present in the same phase or physical state.

\tt 2SO_{2}(g) \ + \ O_{2}(g) \ \rightleftharpoons \ 2SO_{3}(g)

Heterogeneous Equilibrium :

In heterogeneous equilibrium, the reactants and products are present in the two or more phases or physical states.

\tt 3Fe(s) \ + \ 4H_{2}O(g) \ \rightleftharpoons \ Fe_{3}O_{4}(s) \ + \ 4H_{2}(g)

View the Topic in this Video from 0:10 to 13:28

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