Using the ideal gas equation of state, calculate the specific volume (m^(3)/kg) of steam at 400oC and at pressures (a) 0.1 MPa, (b) 1 MPa, (c) 20 MPa. Compare your data with those given in the steam tables. Calculate the compressibility factor for each case and compare to the compressibility factor determined from the compressibility chart. Comment on your findings.