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The volume of 1 kg of helium in a piston-cylinder device is initially 7 m3 ....

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Mechanical Engineering

The volume of 1 kg of helium in a piston-cylinder device isinitially 7 m3 . Now helium is compressed to 3 m3 while itspressure is maintained constant at 150 kPa. Determine the initialand final temperatures of helium as well as the work required tocompress it, in kJ. You may assume deal gas behavior.

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