1) The superheated water vapor is at 15 MPa and 350°C. The gas constant, the critical pressure, and the critical temperature of water are R = 0.4615 kPa m³/kg-K, Tcr= 647.1

K, and Pcr= 22.06 MPa. Use data from the steam tables. a) Determine the specific volume of superheated water based on the ideal-gas equation. b) Determine the specific volume of superheated water based on the generalized compressibility chart. c) Determine the specific volume of superheated water based on data from tables. d) Determine the error involved in the first two cases (a and b).