Use results of Sec. 14.6 to develop the following (approximate) rules of thumb:
(a) The solubility of a solid in a liquid solvent increases with increasing T.
(b) The solubility of a solid in a liquid solvent is independent of the identity of the solvent species.
(c) Of two solids with roughly the same heat of fusion, that solid with the lower melting point is the more soluble in a given liquid solvent at a given T.
(d) Of two solids with similar melting points, that solid with the smaller heat of fusion is the more soluble in a given liquid solvent at a given T.