For 1,3-butadiene at T = 350 K and P = 1.5 MPa, use the Peng-Robinson EOS to find the liquid and vapor phase fugacities, and determine which phase is stable at equilibrium.
A. fL = 0.917 MPa, fV = 1.278 MPa, liquid phase stable
B. fL = 0.917 MPa, fV = 1.278 MPa, vapor phase stable
C. fL = 0.917 MPa, fV = 1.161 MPa, vapor phase stable
D. fL = 0.917 MPa, fV = 1.161 MPa, liquid phase stable
E. None of these are correct.
A. Incorrect. You picked the wrong roots of the EOS to calculate the fugacity from.
B. Incorrect. You picked the wrong roots of the EOS to calculate the fugacity from and interpreted the fugacities incorrectly.
C. Incorrect. You interpreted the fugacities incorrectly.
D. Correct. The lower fugacity represents the stable phase.
E. Incorrect. One of these options is correct.
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