Problem: 1.A closed system undergoes three successive processes: Q +10 kJ, Q +30 kJ, and Q3--5 kJ, respectively. In the first process, AE=+20 kJ, and in the third process, AE=-20 kJ. What is the work in the second process, and what is the net work output of all three stages if AE=0 for the overall three-stage process? ratom