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Disclaimer: Not to be confused with Compressibility factor 

LaTeX Math Inline
bodyZ
.

Material property of Continuum body measuring its resistance to compression/decompression.


A measure of relative change in density 

LaTeX Math Inline
body\rho
 or  molar volume  
LaTeX Math Inline
bodyV_m
 under a unit 
pressure 
LaTeX Math Inline
bodyp
 variation:

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SymbolDimensionSI unitsOil metric unitsOil field units

LaTeX Math Inline
body\beta
 or 
LaTeX Math Inline
bodyc

M-1 L1 T2Pa-1kPa-1

psi-1


It measures its resistance of Continuum body  to compression/decompression.


Compressibility depends on the thermodynamic conditions at which it is measured and as such is not a material property.

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