Explain the overall trend in melting points given below in terms of the forces among particles in the
solids indicated.
$$
\begin{array}{ll}{\text { Hydrogen, } \mathrm{H}_{2}} & {-259^{\circ} \mathrm{C}} \\ {\text { Ethyl alcohol, } \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}} & {-114^{\circ} \mathrm{C}} \\ {\text { Water, } \mathrm{H}_{2} \mathrm{O}} & {0^{\circ} \mathrm{C}} \\ {\text { Sucrose, } \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}} & {186^{\circ} \mathrm{C}} \\ {\text { Calcium chloride, } \mathrm{CaCl}_{2}} & {772^{\circ} \mathrm{C}}\end{array}
$$