When expressing the same phenomenon as an intensive property, the heat capacity is divided by the amount of substance, mass, or volume, thus the quantity is independent of the size or extent of the sample. Heat capacity C has the unit of energy per degree or energy per kelvin. Heat capacity is an extensive property of matter, meaning it is proportional to the size of the system. When a given amount of heat is added to different substances, their temperatures increase by different amounts. Their SI units are J/kg K or J/mol K.ĭifferent substances are affected to different magnitudes by the addition of heat. The properties c vand c p are referred to as specific heats(or heat capacities) because under certain special conditions they relate the temperature change of a system to the amount of energy added by heat transfer. Where the subscripts v and p denote the variables held fixed during differentiation. The intensive properties c v and c p are defined for pure, simple compressible substances as partial derivatives of the internal energy u(T, v) and enthalpy h(T, p), respectively: Specific heat, or specific heat capacity, is a property related to internal energy that is very important in thermodynamics. Latent Heat of Vaporization of Aluminum is 293.4 kJ/mol. Latent Heat of Fusion of Aluminum is 10.79 kJ/mol. Aluminum – Specific Heat, Latent Heat of Fusion, Latent Heat of Vaporization