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The Fluid Components of each phase are sharing the same space volume.


The primary measure of Fluid Mixture Composition is mole fractions of its Fluid Components:

LaTeX Math Block
anchorx
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x_i = \frac{\nu_i}{\nu} = \frac{N_i}{N} 

 where

LaTeX Math Inline
body \nu_i = N_i/N_A

amount of substance of the 

LaTeX Math Inline
bodyi
-th mixture component

LaTeX Math Inline
body\nu = \sum_i \nu_i

total amount of substance in the mixture 

LaTeX Math Inline
bodyN_A

Avogadro constant

LaTeX Math Inline
bodyN_i

amount of molecules/atoms in the 

LaTeX Math Inline
bodyi
-th mixture component

LaTeX Math Inline
bodyN = \sum_i N_i

total amount of molecules/atoms in the mixture 

LaTeX Math Inline
body\sum_i x_i = 1



In case of Multiphase Fluid one often need to assess the voume fraction of each phase:

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s_\alpha = \frac{V_\alpha}{V}

 where

LaTeX Math Inline
bodyV_k

volume occupied by 

LaTeX Math Inline
body\alpha
-phase

LaTeX Math Inline
bodyV=\sum_\alpha V_\alpha

total volume of Multiphase Fluid sample which is a sum of all phase vo;umes



See Also

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Natural Science / Chemistry / Chemical Substance / Mixture / Fluid Mixture

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