A cylinder with a smoothly sliding position is restrained by a linear spring and contains 2 kg of carbon dioxide at 500kPa and 400ºC. The carbon dioxide is heated to 1250ºC, at which point its pressure is 750 kPa. Assuming carbon dioxide is an ideal, constant-cv gas under these conditions: a ) sketch the process on a p-V diagram b ) calculate the sign and magnitude of work done and the heat transferred in this process.