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Consider the piston and cylinder arrangement indicated in the figure, in which a frictionless piston with a cross-sectional area of 0.06 m2 rests on stops on the cylinder walls such that the contained volume is 0.03 m3. The mass of the piston is such that 300 kPa pressure is required to raise the piston against atmospheric pressure. When the piston has moved to a point where the contained volume is 0.075 m3, the piston encounters a linear spring that requires 360 kN to deflect it 1 m. Initially the cylinder contains 4 kg of saturated (two-phase) water at 35oC. The final pressure is 7 MPa. Determine the final state of the H2O and the work done during the process.
a chicken has a mass of 2.2 kg and a specific heat of 3.54 kjkgc. the chickens are cooled by water that enters the heat
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If the peak pressure and peak temperature of the cycle are 4.8 MPa and 2500, determine the net work done per cycle (kJ/kg) and the cycle thermal efficiency .
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a rankine steam power plant should operate with a high pressure of 3 mpa a low pressure of 10 kpa and the boiler exit
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