2.8 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 295 K, 200 kPa. The air receives 1546 kJ of work from the paddle wheel. Assuming the ideal gas model, determine for the air: (a) the mass, in kg, (b) the final temperature, in K, and (c) the amount of entropy produced, in kJ/K.