Air is compressed in a variable-load piston-cylinder device equipped with a paddle wheel. Initially, air is at 500kPa and 27oC . The paddle wheel is now turned by and external electric motor until 50 kj/kg of work has been transferred to air. During this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. R=0.287kj/kg.K A) Calculate the boundary work done B) Calculate the required amount of heat transfer.