(25 points) An ideal gas, with a temperature-independent cp,m = 3.5R at 15 degrees C has an initial volume of 60 m^3. It is heated at constant pressure (P = 1 bar) to 30 degrees C by heat transfer from a reservoir that is also at a pressure of 1 bar. Calculate the total S, Ssurr, and Suniv if: a. The surroundings are at 50 degrees C. b. The surroundings are at 20 degrees C. c. Which of the processes in (a) or (b) is thermodynamically possible? Answers: (a) S = 3702 J, Ssurr = 3386 J; (b) Ssurr = 3733 J