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Steam, initially at 15 bar and 250oC and stored in a rigid container, is reversibly compressed...

Steam, initially at 15 bar and 250oC and stored in a rigid container, is reversibly compressed at constant temperature. During the compression, the steam receives 400 kJ/kg of work. Determine ?? and the final state of the steam. Thermodynamic data: NIST Chemistry WebBook (Thermophysical Properties of Fluid Systems)

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