Problem $0-4-23$

A man weighing $104$ kg is standing on the piston head of a vertical piston$-$cylinder device

containing nitrogen. The gas is now heated by an electrical heater until the man is slowly

lifted by a height of $1\mathrm{.}12$ m $.$ The piston is weightless and has an area of $1\mathrm{.}56m^2.$ The

outside pressure is $100$ kPa $.$ Assume the acceleration due to gravity to be $9\mathrm{.}81\frac{m}{s^2}.$

Determine the initial pressure inside the cylinder.

Express your answer to three significant figures.

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Part B

Determine the final pressure inside.

Express your answer to three significant figures.

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Part C Complete previous part$($s$)$

Find the boundary work $($magnitude only$)$ performed by the piston cylinder device $($nitrogen is the system$)$ assuming an average pressure of $101$ kPa inside the cylinder during the heating process

Part D

Determine the work $($magnitude only$)$ transferred to the man $($man as the system$).$

Express your answer to three significant figures.