1. A piston-cylinder assembly shown in fig.1 initially contains 0.1-m' air at 0.1 MPa. The atmospheric pressure of 0.1 MPa acts on the other side of the piston. At this stage the spring just touches the piston and does not exert any force. Now the gas is heated till the volume is 0.3 m', at this stage the pressure of the gas is 0.6 MPa. When the spring is compressed it exerts a force proportional to the decrease in its length. Calculate the work done by the gas and the change of potential energy of the spring. spring piston cylinder Fig. 1

1. A piston-cylinder assembly shown in fig.1 initially contains 0.1-m' air at 0.1 MPa. The atmospheric pressure of 0.1 MPa acts on the other side of the piston. At this stage the spring just touches the piston and does not exert any force. Now the gas is heated till the volume is 0.3 m', at this stage the pressure of the gas is 0.6 MPa. When the spring is compressed it exerts a force proportional to the decrease in its length. Calculate the work done by the gas and the change of potential energy of the spring. spring piston cylinder Fig. 1

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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