EBK THERMODYNAMICS: AN ENGINEERING APPR
8th Edition
ISBN: 8220100257056
Author: CENGEL
Publisher: YUZU
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Chapter 4.5, Problem 6P
A piston–cylinder device with a set of stops initially contains 0.6 kg of steam at 1.0 MPa and 400°C. The location of the stops corresponds to 40 percent of the initial volume. Now the steam is cooled. Determine the compression work if the final state is (a) 1.0 MPa and 250°C and (b) 500 kPa. (c) Also determine the temperature at the final state in part b.
FIGURE P4–8
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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).
3. A piston-cylinder device with a set of stops initially contains 0.6 kg of steam at 1.0 MPa and
400°C. The location of the stops corresponds to 40 percent of the initial volume. Now the steam
is cooled. Determine the compression work if the final state is (a) 1.0 MPa and 2508C and (b)
500 kPa. (c) Also determine the temperature at the final state in part (b).
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400°C
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- 4-118 A piston-cylinder device contains helium gas initially at 100 kPa, 10°C, and 0.2 m³. The helium is now compressed in a polytropic process (PV=constant) to 700 kPa and 290°C. Determine the heat loss or gain during this process.arrow_forwarduse T(c)= 125arrow_forward4-68 An insulated piston-cylinder device initially contains 0.3 m³ of carbon dioxide at 200 kPa and 27°C. An electric switch is turned on, and a 110-V source supplies current to a resistance heater inside the cylinder for a period of 10 min. The pressure is held constant during the process, while the volume is doubled. Determine the current that passes through the resistance heater.arrow_forward
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