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A frictionless piston-cylinder device initially contains 50 L of saturated liquid refrigerant-134a. The piston is free to move, and its mass is such that

A frictionless piston-cylinder device initially contains 50 L of saturated liquid refrigerant-134a. The piston is free to move, and its mass is such that it maintains a P of 500 kPa on the refrigerant. The refrigerant is now heated until its T rises to 70C. Sketch the Pv diagram to depict the boundary work. Calculate the work done during this process.

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