Redo Problem 4.45 if ethylene is described by the truncated virial equation with B (T) = 5.86

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Redo Problem 4.45 if ethylene is described by the truncated virial equation with B (T) = 5.86 · 10−5 − 0.056/T m3/mol and T in K.

Problem 4.45

The second virial coefficient B can be obtained from experimental PVT data or from an equation of state from 

PV - (PY-1) B = lim V P-0

a. Show that for the Redlich-Kwong equation 

P = RT V-b a TV (V+b)

the second virial coefficient is 

B=b- a RT3/2

b. Compute the second virial coefficient of n-pentane as a function of temperature from the RedlichKwong equation of state.

Redlich-Kwong P=RT a' V-b' TV/V+b). V=? Pt. 2

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