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LaTeX Math Block
anchorZ
alignmentleft
Z = \frac{p V}{\nu \, V_m}{R \, T} = \frac{p}{\rho} \cdot \frac{M}{R \, T}

where

LaTeX Math Inline
bodyp

fluidpressure

LaTeX Math Inline
bodyV_m = V/\nu

amount of substance
fluid molar volume

LaTeX Math Inline
bodyT

fluidtemperature

LaTeX Math Inline
bodyV

fluidvolume

LaTeX Math Inline
body\rho

fluid density

LaTeX Math Inline
body

M

\nu

amount of substance

molar mass of a fluid

LaTeX Math Inline
bodyR

gas constant

LaTeX Math Inline
bodyM

molar mass of a fluid


It is related to fluid compressibility 

LaTeX Math Inline
bodyc
as:

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