Question 1.
a) Use data from the steam tables to construct the PV graph of water. Show the saturated liquid, the saturated vapor, the critical point. Include the isotherms at 100 °C, 200 °C, 300 °C and 400 °C. Make two plots, one using linear axes and one in which the pressure axis is linear but the volume axis is logarithmic.
b) Make a Z - P plot of water using data from the steam tables showing the same information as the PV graph above.
Question 2. Determine whether the truncated virial equation is valid for ethane at the following states:
a) 10 bar, 25 °C.
b) Saturated vapor at 10 bar.
c) 10 bar, -35 °C.
Additional data: The boiling point of ethane at 10 bar is -29 °C.