A piston-cylinder device contains a vapor-liquid equilibrium mixture of water at T=150 °C. The quality of the mixture is initially q=0.90 and the volume of the mixture is initially 1 m3. The vessel is compressed at constant T and P until the quality is q=0.3.
A) Determine the initial masses of the liquid and vapor phases.
B) Determine the work required to complete the compression.
C) Determine the change in enthalpy of the mixture.
A.
10% of this is liquid and 90% vapor. 2.547 kg of vapor, 0.283 kg of liquid.
B)
For constant pressure system:
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