ES 202 - Homework Assignments & Answers

Remarks:
1. Your instructors reserve the right to assign different homework problems for the lecture covered.
2. Answers to conceptual questions will not be given here.
Date Homework Assigned on Lecture # Homework Due on Lecture # Problems from Text Answers
Mar 7 1 3 no homework -
Mar 8 2 4 5-64E 47.4 oF, 0.0479 ft2
5-84 267 oC
Mar 10 3 5 5-104 0.864 kg/s
5-122 103 kW, 133 oC
Mar 14 4 6 3-30 no answers given to table lookup problem
3-31 no answers given to table lookup problem
5-81 6.92 kg/s
Mar 15 5 7 3-57 49.9 kg, 134 oC, 131 MJ
3-63 1.33 MPa
5-105 0.107 kg/s
Mar 17 6 8 3-106 6304 kJ/kg, 6288 kJ/kg, 6110 kJ/kg
5-87 0.674 kg/s
7-67 -0.428 kJ/kg-K, 125.4 kJ/kg
Mar 21 7 day before Exam 1 7-68 (find entropy generation rate instead) 0.820 W/K
7-69 28.81 kJ/K (You do NOT need to know the type of gas.)
Mar 22 8 - no homework (preparation for Exam 1) -
Mar 24 9 - no homework (Exam 1) -
Mar 28 10 12 7-98 89.8%
7-102 646 kPa, 703 kW
7-143 4.44 kW, 5.26 kW
Mar 29 11 13 8-105 0.793, 40.2%, 165 kg/s
8-106 0.874, 34.1%, 195 kg/s
Mar 31 12 14 8-135 0.322, 3.96, 1.263 kW
Repeat 8-135 with an isentropic compressor efficiency of 85% 0.322, 3.37, 1.485 kW
Apr 11 13 - no homework (Lab 1 project work) -
Apr 12 14 16 2-52E 64.3 psia
2-59 123 kPa
2-75 47 cm
Apr 14 15 17 11-16E 49,500 lbm
11-21 0.379 m, 0.524 m
11-59 520 kN
Apr 18 16 18 11-30 1053 kg/m3 (the 10-cm label on the figure should be "9.5 cm")
11-34 1050 N
Apr 19 17 19 12-6 77.6%, 72.8%
12-46 33.8 m/sec
Apr 21 18 - no homework -
April 25 19 - no homework (preparation for Exam 2) -
April 26 20 - no homework (Exam 2) -
April 28 21 23 12-67 0.204 m, 40 W
Dimensional Analysis on Pipe Friction no answer provided
May 2 22 24 14-41 4.83 W
14-49 724 m, 4.73 MPa, 1.065 kW
May 3 23 25 14-43 (a) 16.2 cm3/s, (b) 10.10 cm3/s, (c) 22.4 cm3/s
14-80 2.97 kW
May 5 24 day before Exam 3 14-75 0.00597 m3/s
May 9 25 - no homework (preparation for Exam 3) -
May 10 26 - no homework (Exam 3) -