1.
Br2()+Cl2(g)2BrCl(g)\text{Br}_2(\ell)+\text{Cl}_2(\text{g})\rightarrow 2\text{BrCl}(\text{g}); ΔH=29.37kJ\Delta H=29.37\,\text{kJ}, ΔS=104J K1\Delta S=104\,\text{J K}^{-1}. Spontaneous above: