Compressibility
In thermodynamics and fluid mechanics, compressibility is a measure of the relative volume change of a fluid or solid as a response to a pressure (or mean stress) change.
![\beta=-\frac{1}{V}\frac{\partial V}{\partial p}](/Images/godic/202501/05/411c7c3d0fa7dc9ade50823442dd8bb40653.png")
where V is volume and p is pressure.
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