PNG 520
Phase Relations in Reservoir Engineering

Molecular Weight

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The molecular weight (MW) of each of the phases in a VLE system is calculated as a function of the molecular weight of the individual components (MWi), provided that both the composition of the gas (yi) and the liquid (xi) are known:

M W g = ∑ i=1 n y i M W i This equation is not rendering properly due to an incompatible browser. See Technical Requirements in the Orientation for a list of compatible browsers.
(18.1a)
 
M W l = ∑ i=1 n x i M W i This equation is not rendering properly due to an incompatible browser. See Technical Requirements in the Orientation for a list of compatible browsers.
(18.1b)