chapter  1
26 Pages

## Melting Point

The melting point of a compound is the temperature at which the solid and liquid phases are in equilibrium at one atmosphere; pressure is specified because the melting process involves a change in volume and is therefore pressure dependent. Since the melting point can be determined easily experimentally, it is the most commonly reported physical property for organic compounds. However, in the absence of a rigorous theory of fusion, it is one of the most difficult to predict.