The spring-loaded piston–cylinder device shown in the figure is filled with 0.55 kg of water vapor...

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Mechanical Engineering

The spring-loaded piston–cylinder device shown in the figure isfilled with 0.55 kg of water vapor that is initially at 4 MPa and400°C. Initially, the spring exerts no force against the piston.The spring constant in the spring force relation F = kx is k = 0.9kN/cm and the piston diameter is D = 20 cm. The water now undergoesa process until its volume is one-half of the original volume.Calculate the final temperature and the specific enthalpy of thewater. Use data from the steam tables

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