Amount of heat required to change the temperature of one unit of amount of matter under a constant pressure by one unit of temperature:
c_V = \frac{C_V}{\nu} = \frac{1}{\nu} \cdot \left( \frac{\delta Q}{\delta T} \right)_P |
Symbol | Dimension | SI units | Oil metric units | Oil field units |
---|---|---|---|---|
c_V | M L2 T−2 Θ−1 | J/(mol⋅K) | J/(mol⋅K) |
It is a material property and properly tabulated for the vast majority of materials.
The Isochoric molar heat capacity is related to Isobaric specific heat capacity c_{Pm} and Volumetric Heat Capacity c_{Pv} as:
|
|
where
M | molar mass of the substance | V_m | molar volume of the substance |
The Isochoric molar heat capacity of the mixture in thermodynamic equilibrium follows the simple mixing rule:
(3) | c_V = \sum_i \, x_i \, c_{V \, i} |
where
x_i | mole fraction of the i-th mixture component, subjected to \sum_i x_i= 1 |
c_{V\, i} | isochoric molar heat capacity of the i-th mixture component |
See also
Physics / Thermodynamics / Thermodynamic process / Heat Transfer / Heat Capacity / Molar Heat Capacity
[ Isobaric molar heat capacity (cP) ]
[ Basic Petroleum Rock and Fluid Properties Handbook ]