Amount of heat required to change the temperature of one unit of mass by one unit of temperature:
c = \frac{\delta Q}{\delta m \cdot \delta T} |
Specific Heat Capacity depends on the PVT conditions at which the heat transfer is happening and thus.
The two major heat transfer processes are isobaric and isohoric which define:
Both c_p and c_V are characterizing the properties of matter and properly tabulated for the vast majority of materials.
See also
Physics / Thermodynamics / Thermodynamic process / Heat Transfer