Figure 4
The pressure dependence of molecular volume (Vm) of ethyl propionate in phase β (black circles), as well as in the liquid at 296 K (green diamond) and in phase α at 185 K (blue square). The dashed line, representing an idealized compression of liquid and transition volume change (Bridgman, 1931), has been drawn only as a guide to the eye; the molecular volume at the freezing pressure of 1.03 GPa (red circle) has been estimated from the compression of phase β. This figure is in colour in the electronic version of this paper. |