Answer the following problems, and submit your answers to the drop box in ANGEL that has been created for this module.
- Your answers must be submitted in the form of a Microsoft Word document.
- Include your Penn State Access Account user ID in the name of your file (for example, "module2_abc123.doc").
- The due date for this assignment will be sent to the class by e-mail in ANGEL.
- Your grade for the assignment will appear in the drop box approximately one week after the due date.
- You can access the drop box for this module in ANGEL by clicking on the Lessons tab, and then locating the drop box on the list that appears.
- If a gas is ideal, would its compressibility factor (Z) be always equal to one?
- For a gas with Z=1, would its behavior be ideal?
- Take a look at the Standing-Katz Compressibility Factor Plot for Natural Gases. What is the information you need to obtain a value of “Z” for a gas? What happens to “Z” at low pressures? What is the behavior of “Z” at high pressures? What is the compressibility factor of Methane (Pc = 666 psia, Tc = – 117 F) at P = 1000 psia and T = 0 F?
- As pressure approaches to zero, what should vdW EOS collapse to? Why? Can you show it?
- Speculate on how you could calculate the “Z” factor for a gas using vdW EOS.