Compressibility under isentropic (constant entropy ): compression/decompression thermodynamic process :
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c_S = \frac{1}{\rho} \left( \frac{\partial \rho}{\partial p} \right)_S = - \frac{1}{V_m} \left( \frac{\partial V_m}{\partial p} \right)_S |
Isentropic Compressibility is material property and is inverse to Isentropic bulk modulus :
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\beta_S = \frac{1}{K_S} |
See also
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Physics / Mechanics / Continuum mechanics / Continuum body / Compressibility
[ Isentropic bulk modulus (KS) ]