a. Show for the Peng-Robinson equation of state (Eq. 6.4-2) that Eq. 6.4-2. b. Determine the critical

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a. Show for the Peng-Robinson equation of state (Eq. 6.4-2) that

Eq. 6.4-2.

P = RT V-b a(T) V(V+b) + b(V - b) (6.4-2)

and a(Te) = 0.45724RT/Pc b= 0.07780RT/Pe

b. Determine the critical compressibility of the PengRobinson equation of state.

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