A piston-cylinder device initially contains air at 150 kPa and 27¬¨¬®‚Äö√†√ªC. At this state, the volume is 400 litre. The mass of the piston is such that a 350 kPa pressure is required to move it. The air is now heated until its volume has doubled. Determine work done by the air.$#

A piston-cylinder device initially contains air at 150 kPa and 27¬¨�

1.	A piston-cylinder device initially contains air at 150 kPa and 27¬¨¬®‚Äö√†√ªC. At this state, the volume is 400 litre. The mass of the piston is such that a 350 kPa pressure is required to move it. The air is now heated until its volume has doubled. Determine work done by the air.$#
A.	120 kJ
B.	130 kJ
C.	100 kJ
D.	140 kJ
Answer» E.

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A piston-cylinder device initially contains air at 150 kPa and 27¬¨¬®‚Äö√†√ªC. At this state, the volume is 400 litre. The mass of the piston is such that a 350 kPa pressure is required to move it. The air is now heated until its volume has doubled. Determine work done by the air.$#

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