A piston-cylinder device with a set of stops initially contains 0.5 kg of steam at 1.2 MPa and 500°C. The location of the stops corresponds to 30 percent of the initial volume. Now the steam is cooled. Determine the compression work if the final state is; (a) 1.2 MPa and 200°C. (b) 500 kPa (c) Also determine the temperature at the final state in part (b)

Q: (a) the final temperature, (b) the work done during this process, (c) the total heat transfers

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Q: 3) A frictionless piston-cylinder device contains 3 m3 of a gas at 200 kPa and 300 K. The gas is now…

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Q: A piston-cylinder device contains 15 kg of Refrigerant-l 34a (R-134a) at 10 °C with 30% quality.…

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Q: The water is at 160°C and 1.5 bar at initial conditions. It is internally reversibly and…

A: Given Data State 1: 160°C,1.5 bar State 2: 160°C, saturated liquid

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Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

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Q: A 7.57-m rigid tank contains 0.546 kg of H,O at 37.8°C. The H,0 is then heated to 204.4°C. Determine…

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Q: 4-65E A 10 ft³ tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.