Water vapor initially at 2408C, 1 MPa expands in a

Chapter 11, Problem 11.12

(choose chapter or problem)

Water vapor initially at \(240^{\circ} \mathrm{C}\), 1 MPa expands in a piston–cylinder assembly isothermally and without internal irreversibilities to a final pressure of 0.1 MPa. Evaluate the work done, in kJ/kg. Use a truncated virial equation of state with the form

\(Z=1+\frac{B}{v}+\frac{C}{v^{2}}\)

where B and C are evaluated from steam table data at \(240^{\circ} \mathrm{C}\) and pressures ranging from 0 to 1 MPa.

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