Correlation between heat of fusion and change of volume at melting by volume-dependent heat capacity

Heat capacity is a key subject in condensed matter physics due to its scientific and technological importance. Previous studies show that the change of heat d Q is dependent on both of the macroscopic physical variables in general solids: d T and dln V . In this paper, we analyze the thermal parameters during the process of melting in a series of reference materials. The behavior of the heat of fusion and the volume change at melting in the reference materials can be explained by the new heat capacity model in solids. The change of volume at melting can be quantitatively gotten by the heat of fusion. The results are helpful to further understand the volume-dependent heat capacity in the model and the melting process in general materials.