For first day of class:Read parts of Chapter 1 enough to bring to class Schroeder's definitions of a) temperature, b) heat, and c) work.

The 'expiration' date of an assignment is two days after the due date.

• 1.7 a), p. 6
  
• 1.15, p. 8. a) Find the density of air in Albuquerque at 40 F (dawn) and 55 F (late morning). b) Take the balloon diameter to be 60 ft. (Balloons like those in Fig. 1 are launched during the Balloon Festival in Albuquerque, NM in October each year.) (p. 8 gives the payload mass as 500 kg)
  
• For temperatures of 40 F and 55 F,. find the mass of air inside the balloon when hovering. c) Find the average air temperature inside the balloon with outside air is 40 F (dawn),  at 55 F (late morning).
• Use data on pp 404,5 to out how many mols of propane must be burned to raise the air temperature inside the balloon from 310 K to 320 K, including the air which would leave during the heating (assume all the air stays inside during heating). Write out the stoichiometry, and show the details of the calculation. Look-up of propane combustion will not do. The standard 'heat of combustion' assumes the water winds up as liquid. For this problem, assume that the water produced by the combustion stays in the vapor phase.  Same balloon as earlier, 60 ft diameter, 500 kg payload.

• 1.12 p. 8
• 1.16 p. 8
  
• 1.17 a) and b), p. 9
  
• 1.17 c) and d), p. 9

• 1.34, p. 23
• 1.37, p. 26
  
• Calculate the heat flow through the walls and ceiling of the SRC for 20 degrees F temperature difference. Take the building to be 27' high and 314' x 208' in footprint. Ignore heat flow through the floor, take 20% window area, 80% other area, R-2 for windows, R-10 for walls, etc. First find the heat flow in BTU/hr, then watts. Determine the heating cost per day, at 10 cents per kwh.
• Prob 1.22 a) through e), p. 14
• Problem 1.23, 1.24, p. 17.
• Problem 1.57, p. 39
  

• Problem 2.10, p. 60. Let solid A have 300 oscillators and B have 150 oscillators, and the two share 100 energy units. (Use the COMBIN function in Excel)
• Problem 2.12, p. 61
• Problem 2.16, p. 63
  
• Problem 2.34, p. 79
  
• Prob 3.5, p. 91
  
• Prob 3.8 p. 93

• Problem 3.23, p. 107
• Problem 3.24, p. 107
  
• Problem 3.36, p. 118
  
• Problem 4.1, p. 124
• Problem 4.2, p. 124

• Problem 4.13, p. 129. Use the ideal COP formula to get delta-T squared. Compare cost/hr for delta-T of 5 K and 10 K
• Problem 4.22, p. 137
• Problem 4.26, p. 137
• Problem 4.30, p. 141
• Problem 4.33, p. 143
  

• Problem 5.4, p. 155
  
• Problem 5.6, p. 156
• Problem 5.20, p. 163
• Problem 5.27, p. 171
• Problem 5.28, p. 171
  

• Problem 5.32, p. 174
• Problem 5.51. p. 185
• Problem 5.77, p. 205
• Problem 6.3, p. 225
• Problem 6.5, p. 225
  

• Problem 6.12, p. 228
• Problem 6.27, p. 237
• Problem 6.39, p. 246. Use Digits = 300 in Maple. Note Schroeder using x_min on p. 246
• Problem 6.44, p. 251