铝的比热容是0.88×103 J/(kg·℃), 溶点:660.37铝的熔解热是3.98×105J/kg,铝的蒸发热是1.05× 107J/kg.熔解热 单位质量的晶体物质在熔点时，从固态变成液态所吸取的热量，叫做这种物质的熔解热。
The specific heat capacity of aluminum is 0.88 × 103 J / (kg ·℃), the melting point is 660.37, the melting heat of aluminum is 3.98 × 105 J / kg, and the evaporation heat of aluminum is 1.05 × 107 J / kg.
Melting heat: the latent heat of phase transformation absorbed by a unit mass of crystalline material when it changes from solid phase to liquid phase at the melting point. The melting of crystals is a process in which the particles change from regular arrangement to irregular arrangement. The heat will be used to resist the molecular gravity to do work and increase the potential energy of the molecule. In other words, the heat absorbed by the substance is the energy needed to destroy the lattice structure, which makes the motion state of the molecule change qualitatively from the solid molecular thermal motion to the liquid molecular thermal motion, and changes the state of the substance.
So the crystal not only has a fixed melting point, but also needs to absorb a certain amount of heat to achieve its melting. Due to different materials, the lattice structure of crystal space is different. Although the mass of different materials is the same, the heat absorbed during melting is different.
In order to express this characteristic of crystal material, the melting heat is introduced. It represents the heat required for a solid substance of unit mass to completely melt into a liquid substance at the same temperature at the melting point; when the substance solidifies, at the freezing point, it is also equal to the heat released by the same liquid substance of unit mass to transform into a crystal.
如果用λ表示物质的熔解热，m表示物质的质量，Q表示熔解时所需要吸取的热量，则 Q=λm 熔解热的单位是焦耳/克或焦耳/千克。测量熔点较高的物体的熔解热是比较困难的，但是对于熔点较低的物体，就可以用量热器来测定。
If λ is used to denote the melting heat of a substance, M is the mass of the substance, and Q is the heat to be absorbed during melting, then q = λ m, the unit of melting heat is Joule / g or Joule / kg. It is difficult to measure the melting heat of the object with high melting point, but for the object with low melting point, it can be measured by calorimeter.