4-83 Determine the specific volume of superheated water vapor at 15 MPa and 350°C using (a) the ideal-gas equa- tion, (b) the generalized compressibility chart, and (c) the steam tables. Also determine the error involved in the first two cases. Answers: (a) 0.01917 m³/kg, 67.0 percent, (b) 0.01246 m³/kg. 8.5 percent, (c) 0.01148 m³/kg

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