A piston-cylinder device initially contains 0.4 m3 of air (to be treated as an ideal gas) at 100 kPa and 80 C. The air is now isothermally compressed to 0.1 m3. The work done during this process is ______kJ. (Take the sign convention such that work done on the system is negative)

A piston-cylinder device initially contains 0.4 m3 of air (to be treat

1.	A piston-cylinder device initially contains 0.4 m³ of air (to be treated as an ideal gas) at 100 kPa and 80 C. The air is now isothermally compressed to 0.1 m³. The work done during this process is ______kJ. (Take the sign convention such that work done on the system is negative)
A.	55.45 kJ
B.	-21.45 kJ
C.	-55.45 kJ
D.	-15.45 kJ
Answer» D. -15.45 kJ

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A piston-cylinder device initially contains 0.4 m3 of air (to be treated as an ideal gas) at 100 kPa and 80 C. The air is now isothermally compressed to 0.1 m3. The work done during this process is ______kJ. (Take the sign convention such that work done on the system is negative)

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A piston-cylinder device initially contains 0.4 m³ of air (to be treated as an ideal gas) at 100 kPa and 80 C. The air is now isothermally compressed to 0.1 m³. The work done during this process is ______kJ.
(Take the sign convention such that work done on the system is negative)