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Isentropic bulk modulus = KS

Created by Arthur Aslanyan (Nafta College), last modified on Jul 04, 2021

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Bulk modulus under isentropic (constant entropy $\begin{array}{l}S = \rm const\end{array}$ ) compression/decompression thermodynamic process:

(1)	$\begin{array}{l}\displaystyle K_S = \rho \cdot \left( \frac{\partial p}{\partial \rho} \right)_S\end{array}$

Isentropic bulk modulus is material property and inverse to Isentropic Compressibility $\begin{array}{l}\beta_S\end{array}$ :

(2)	$\begin{array}{l}\displaystyle K_S = \frac{1}{\beta_S}\end{array}$

See also

Physics / Mechanics / Continuum mechanics / Continuum body / Bulk modulus

[ Isothermal Compressibility ]

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