Chemistry · Ch 8 — Physical and Chemical Equilibrium

Heterogeneous equilibrium

8.5.2

In a heterogeneous equilibrium, the reactants and products of the reaction are spread across more than one phase. The liquid-vapour equilibrium

H_2O(l) \rightleftharpoons H_2O(g)

spans a liquid phase and a gas phase, and the thermal decomposition of limestone

$CaCO_3(s) \rightleftharpoons CaO(s) + CO_2(g)$ …