Solution
= Solution
\b[Heating increases the monomer fraction through $\mathrm{Al_2Cl_6(g)\rightleftharpoons2AlCl_3(g)}$.] Dissociation breaks the bridge interactions and gains translational <entropy> by making two gas molecules from one. Its <enthalpy> cost becomes easier to offset at higher <temperature>. The qualitative statement concerns the molecular gas-phase equilibrium at the stated conditions, rather than every solid or liquid phase of <aluminium chloride>.