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单词 Soave–Redlich–Kwong (SRK) equation of state
释义
Soave–Redlich–Kwong (SRK) equation of state

Chemical Engineering
  • An equation of state widely used to predict the vapour–liquid equilibria of substances. It is a development of the Redlich–Kwong equation of state that correlated the vapour pressure of normal fluids:

    p=RTVbaα(T)V(V+b)

    The a and b constants are obtained from critical point data. It also involves a function which was developed to fit vapour pressure data using reduced temperature, Tr:

    α=[1+(0.480+1.574ω0.176ω2)(1Tr0.5)]2

    where ω is an eccentricity coefficient.


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