Answer
Homogeneous equilibrium is a chemical equilibrium in which all the reactants and products are of the same phase. For instance,
$CO(g) + Cl_{2}(g) <=> COCl_{2}(g)$
$H_{2}CO_{3}(aq) <=> H^{+}(aq) + HCO_{3}^{-}(aq)$
Heterogeneous equilibrium involves species that are of different phase. For instance,
$H_{2}O(g) + C(s) <=> CO_{2}(g) + H_{2}(g)$
$2HgO(s) <=> 2Hg(l) + O_{2}(g)$
Work Step by Step
Homogeneous equilibrium is a chemical equilibrium in which all the reactants and products are of the same phase. For instance,
$CO(g) + Cl_{2}(g) <=> COCl_{2}(g)$
$H_{2}CO_{3}(aq) <=> H^{+}(aq) + HCO_{3}^{-}(aq)$
Heterogeneous equilibrium involves species that are of different phase. For instance,
$H_{2}O(g) + C(s) <=> CO_{2}(g) + H_{2}(g)$
$2HgO(s) <=> 2Hg(l) + O_{2}(g)$
