2 Due 1/16

1. Construct the phase of the substance under the given conditions in the stated diagram. Mark all lines to do it with their values. However, do not put anything more in the diagram than is needed to construct the phase. State what the phase is.
   1. Water at 100$\POW9,{\circ}$C and 500 kPa, in the $PT$ diagram. Put in the temperature first.
   2. Water at 100$\POW9,{\circ}$C and 500 kPa, in the $Pv$ diagram. Put in the temperature first.
   3. Water at 100$\POW9,{\circ}$C and 500 kPa, in the $Pv$ diagram. Put in the pressure first.
   4. Water at 100$\POW9,{\circ}$C and 500 kPa, in the $Tv$ diagram. Put in the temperature first.

2. Construct the phase of the substance under the given conditions in the stated diagram. Mark all lines to do it with their values. However, do not put anything more in the diagram than is needed to construct the phase. State what the phase is.
   1. R-134a at 20$\POW9,{\circ}$C and 1 MPa, in the $Tv$ diagram. Put in the pressure first.
   2. R-134a at -20$\POW9,{\circ}$C and 100 kPa, in the $Pv$ diagram. Put in the temperature first.

3. Construct the phase of the substance under the given conditions in the stated diagram. Mark all lines to do it with their values. However, do not put anything more in the diagram than is needed to construct the phase. State what the phase is.
   1. R134a, at -10$\POW9,{\circ}$C and 100 kPa, in the $Pv$ diagram. Put in the temperature first. State the specific volume of the substance.
   2. R134a, at 40$\POW9,{\circ}$C and 0.5 MPa, in the $Pv$ diagram. Put in the pressure first. State the specific volume of the substance.

4. Construct the phase of R-134a at -10 F and 18 psia in the $Pv$ diagram. Use the English-units tables in appendix A-1E to A1-32E only. Mark all lines to do it with their values. However, do not put anything more in the diagram than is needed to construct the phase. State what the phase is. State the specific volume of the substance.

   Note: You should find that the phase is compressed liquid. However, you have no compressed liquid table. I did not have time to tell you this in class, but in that case the solution is to use the saturated tables as an approximation. In doing that, make sure that you get the temperature right, and ignore the fact that you read the specific volume for the wrong pressure. The reason you can do that is that pressure makes very little difference for a liquid or solid unless it is extremely large.