Answers to Feb 13, 1998 Exam

1)  You need to show all your work for full credit

Process Q (kJ) W (kJ) DU (kJ)
1 - 2 0 0.168 given
2 - 3 0.473 -0.119 given
3 - 4 0 -.137 given
4 - 1 -0.385 0 given
Total 0.088 -0.088 0

2) Power cycle, hth = 0.186

3a) -26 kW
3b) 0.637 kN-m
3c) 12 kW

4) 2 ft/s