@wikipedia
A measure of resistance of a Continuum body to compression.
A measure of isothermal relative change in density
or molar volume under a unit pressure variation:| LaTeX Math Block |
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c = \frac{1}{\rho} \left( \frac{\partial \rho}{\partial p} \right)_T = - \frac{1}{V_m} \left( \frac{\partial V_m}{\partial p} \right)_T |
Compressibility depends on the thermodynamic conditions at which it is measured.
The most popular are:
| Isothermal Compressibility | Isentropic Compressibility |
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| LaTeX Math Block |
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| c_T = \frac{1}{\rho} \left( \frac{\partial \rho}{\partial p} \right)_T |
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| LaTeX Math Block |
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| c_S = \frac{1}{\rho} \left( \frac{\partial \rho}{\partial p} \right)_S |
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See also
Physics / Mechanics / Continuum mechanics
[Fluid compressibility] [Pore compressibility] [Total compressibility]
