4) Air is confined to a vertical cylinder with a 2 cm diameter and 1 meter length that is closed at the top with a well-lubricated piston weighing 10 N. The cylinder is insulated. Initially the air is at room temperature and at the ambient pressure in Albuquerque, and the weight of the piston is supported by a couple of pins. When the pins are removed, the air is compressed under the additional weight of the piston. How far will the weight fall before coming to equilibrium? Work this problem two different ways. First, assume a compression at a constant external pressure. Second, assume a reversible compression. Assume ideal gas behavior.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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4) Air is confined to a vertical cylinder with a 2 cm diameter and 1 meter length that is closed at the top
with a well-lubricated piston weighing 10 N. The cylinder is insulated. Initially the air is at room
temperature and at the ambient pressure in Albuquerque, and the weight of the piston is supported by
a couple of pins. When the pins are removed, the air is compressed under the additional weight of the
piston. How far will the weight fall before coming to equilibrium? Work this problem two different
ways. First, assume a compression at a constant external pressure. Second, assume a reversible
compression. Assume ideal gas behavior.
Transcribed Image Text:4) Air is confined to a vertical cylinder with a 2 cm diameter and 1 meter length that is closed at the top with a well-lubricated piston weighing 10 N. The cylinder is insulated. Initially the air is at room temperature and at the ambient pressure in Albuquerque, and the weight of the piston is supported by a couple of pins. When the pins are removed, the air is compressed under the additional weight of the piston. How far will the weight fall before coming to equilibrium? Work this problem two different ways. First, assume a compression at a constant external pressure. Second, assume a reversible compression. Assume ideal gas behavior.
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Mechanical Engineering homework question answer, step 1, image 1

Given d= 2cm, l= 1m

Piston weight= 10 N

considering ambient pressure as 1 atm

P1=Po=1 atm= 101.325 kPa

         

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