版权所有：华东理工大学物理化学教研室 3 In this chapter, we first describe the interpretation of empirically determined phase diagrams for a selection of materials; then we turn to a considera￾tion of the factors that determine the positions and shapes of the boundaries between the regions on a phase diagram; and finally, we consider the thermodynamic discussion of liquid surfaces, such as surface tension and capillary action. 6. Physical transformation of pure substances版权所有：华东理工大学物理化学教研室 3 In this chapter, we first describe the interpretation of empirically determined phase diagrams for a selection of materials; then we turn to a considera￾tion of the factors that determine the positions and shapes of the boundaries between the regions on a phase diagram; and finally, we consider the thermodynamic discussion of liquid surfaces, such as surface tension and capillary action. 6. Physical transformation of pure substances