Consider nitrogen gas contained in a piston-cylinder arrangement as shown in the sketch. The piston is free to move without friction. The cylinder diameter is 150 mm. At the initial state the temperature of the N₂ is 500 K, the pressure is 100 kPa, and the height of the gas column within the cylinder is 200mm. Heat is removed from the N₂ by a quasi-static, constant-pressure process until the temperature of the N₂ is 300 K. Calculate the work done by the N₂ gas.

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200 mm 150 mm- diameter N₂ at P₁, T₁