one kg of fluid is compressed reversibly according to a law PV=0.25, where p in bar and v in m³/kg. The final volume is one-fourth the initial volume. Calculate the work done on the fluid and sketch the process on the P-V (34 660 J) diagram. 0.05 m³ of gas at 6.9 bar expands reversibly in a cylinder behind a piston according to a law Pyl.25-C until the volume is 0.08 m³. Calculate the work done by the gas and sketch the process on the P-V diagram (15 300J) ca

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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one kg of fluid is compressed reversibly according to a law PV=0.25,
where p in bar and v in m³/kg. The final volume is one-fourth the initial
volume. Calculate the work done on the fluid and sketch the process on the P-V
diagram.
(34 660 J)
0.05 m³ of gas at 6.9 bar expands reversibly in a cylinder behind a
piston according to a law PV1.25-C until the volume is 0.08 m³. Calculate the
work done by the gas and sketch the process on the P-V diagram (15 300 J)
One kg of fluid expands reversibly according to a linear law from 4.2
bar to 1.4 bar. The initial and final volume are 0.004 and 0.02 m³ respectively.
The fluid then cooled reversibly at constant pressure, and finally compressed
reversibly according to a law PV=C back to initial condition of 4.2 bar and
0.004 m³. Calculate the work done for each process, the net work done and
sketch the cycle on the P-V diagram. (4480, -1120, -1845 &1515 N-m)
0.09 m³ of fluid at .7 bar is compressed reversibly to a pressure of 3.5
bar according to a law PV"=C. The fluid is then heated reversibly at constant
volume until the pressure is 4 bar; the specific volume is 0.5 m³/kg. A
V
Transcribed Image Text:one kg of fluid is compressed reversibly according to a law PV=0.25, where p in bar and v in m³/kg. The final volume is one-fourth the initial volume. Calculate the work done on the fluid and sketch the process on the P-V diagram. (34 660 J) 0.05 m³ of gas at 6.9 bar expands reversibly in a cylinder behind a piston according to a law PV1.25-C until the volume is 0.08 m³. Calculate the work done by the gas and sketch the process on the P-V diagram (15 300 J) One kg of fluid expands reversibly according to a linear law from 4.2 bar to 1.4 bar. The initial and final volume are 0.004 and 0.02 m³ respectively. The fluid then cooled reversibly at constant pressure, and finally compressed reversibly according to a law PV=C back to initial condition of 4.2 bar and 0.004 m³. Calculate the work done for each process, the net work done and sketch the cycle on the P-V diagram. (4480, -1120, -1845 &1515 N-m) 0.09 m³ of fluid at .7 bar is compressed reversibly to a pressure of 3.5 bar according to a law PV"=C. The fluid is then heated reversibly at constant volume until the pressure is 4 bar; the specific volume is 0.5 m³/kg. A V
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