Universal relation between Isobaric molar heat capacity (cP) and Isochoric molar heat capacity (cV):
c_P - c_V = V_m \, T \, \frac{\alpha_V^2}{c_T} |
where
| temperature | molar volume | ||
| Isothermal Compressibility | thermal expansion coefficient |
For incompressible matter the Isobaric molar heat capacity (cP) and Isochoric molar heat capacity (cV) are identical:
c_P = c_V |
For the ideal gas it will take a form:
c_P - c_V = R |
where
| Gas constant |
Both incompressible matter and ideal gas are idealistic models but some real mattes come very close to conditions of or
at engineering level of accuracy.
Physics / Thermodynamics / Thermodynamic process / Heat Transfer / Heat Capacity / Molar heat capacity
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