a) What phase is the inlet stream? In other words, is it liquid or vapor?

b) What is the fugacity of the input stream according to the PengRobinson equation?

c) What is Hvap at the outlet conditions according to the PengRobinson equation?

d) What is the fugacity of the input stream according to the Poynting method?

A pure material passes through a throttling process. Process stream P = 0.84 MPa T = 350 K Process stream P = 0.1 MPa T = 308.637 K You have the following information available from solutions of the Peng-Robinson equation at the inlet and outlet conditions of this process. It is your job to identify the phase conditions (i.e., liquid or vapor) at which those roots correspond to. Inlet: T = 350 K P=0.84 MPa root Z 1 2 3 0.7113 0.2268 0.0359 H-HigG-Gig RT . -0.8233 -0.2489 -2.3421 -0.1598 -8.2872 -0.9762 Outlet: T = 308.637 K P=0.10 MPa root z RT 1 2 H-Hig G-Gig RT 0.961 -0.1032 0379 0.0306 -2.8147 1.4327 0.0045 -10.1541 -0.0379