Question

1) Hydrofluoroethers (HFEs) were developed originally as a replacement for harmful refrigerator fluids such as CFCs, HFCs, and PFCs. Answer following questions for HFE – 143 m. a) Calculate a centric factor for this substance. You may need to find peer reviewed publications. If you do find an a centric factor, still do the work of confirming it is correct, showing all work b) Estimate Z for this substance from figure 7.4 of textbook for T= 72 °C and P=14.25 atm. c) Estimate Z for this substance from the Felder and Rousseau charts for T= 72 °C andP=14.25 atm. d) Calculate Z for this substance using Peng-Robinson EOS for T= 72 °C and P=14.25 atm.

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