Question: A pistoncylinder device initially contains 0.07 m3 of nitrogen gas at 130 kPa and 120C. The nitrogen is now expanded polytropically to a state of

A piston–cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kPa and 120°C. The nitrogen is now expanded polytropically to a state of 100 kPa and 100°C. Determine the boundary work done during this process.

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