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Calculate the molar volume of superheated steam at 25 MPa and 700^oC.

1. From the ideal Equation of State
2. From the van der Waals Eq. of State
3. From the SRK Eq. of State
4. Using the Law of Corresponding States

i. By using Equ. 7.9 and the tables in Appendix C to determine z

ii. By using compressibility charts distributed in class or those in the text to determine z

Determine the percent error for each calculated value of molar volume. The experimentally determined values of the specific volume from the Property Tables Booklet* is 0.016643 m³/kg

Note: % error =100 [ (value true value)/true value]

*Property Tables Booklet; Cengel and Boles Thermodynamics, An Engineering Approach McGraw Hill: 2011