Testing Marjwt

ANSWERS TO END-OF-CHAPTER PROBLEMS Fundamentals of Heat and Mass Transfer (7th Edition) T.L. Bergman A.S. Lavine F.P. Incropera D.P. DeWitt

CHAPTER 1 1.1 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.12 1.13 1.15 1.16 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.30 1.31 1.32 1.33 1.34 1.35 1.36 1.37 1.39 1.40 1.41 14.5 W/m2, 58 W 2667 W 4312 W, $8.28/d –4.35 °C/m 0.10 W/m⋅K 8400 W (a) 18.5 × 10-6 19,600 W, 120 W 54 mm 16.6 W/m2, 35.9 W 375 mm 110.40°C, 110.24°C 1.1°C 1400 W/m2, 18,000 W/m2 (a) 22.0 W/m2⋅K; (b) 22.12, 0.6 20 W/m2, 20 W/m2, –20 W/m2 4570 W/m2⋅K, 65 W/m2⋅K 6.3 W/m2⋅K 102.5°C 51.8°C, 3203°C 6.3 m/s 0.35 W, 5.25 W 15 mW (a) 18,405 W; (b) $12,900 254.7 K 4.3 W 0.42, 264 W (a) 0.32 W/m2⋅K, 0.32 W/m2⋅K, 2.1 W/m2⋅K (a) 8.1 W; (b) 0.23 kg/h (a) 0, 144 W, 144 W, 0; 0, 144 W, 144 W, 0; (b) 2.04×105 W/m3; (c) 39.0 W/m2⋅K (a) 4.86 MW; (b) 9.22 kW; (c) 4.87 MW; (d) 4.87 MW (a) 300°C; (b) 3.89 MW; (c) 3.19 kW; (d) 3.89 MW 2.41, 312 W, 1.25, 600 W (a) 0.223 W; (b) 3.44 W 100°C

1.42 1.43 1.45 1.46 1.47 1.48 1.49 1.51 1.52 1.53 1.54 1.55 1.57 1.58 1.59 1.61 1.62 1.63 1.64 1.65 1.66 1.67 1.69 1.70 1.71 1.72 1.73 1.74 1.75 1.76 1.77 1.78 1.79 1.81 1.82 1.83 1.84 1.85

(a) 643 W; (b) 175 h 512°C, 518°C (a) 0.052°C/s; (b) 48.4°C 375 W, 1.8 × 10-4 W, 0.065 W 300 J, 1800 J, 9000 J 6380 kWh, $1150 or $383 (a) 1.41×10-3 kg/s (a) 4180 s; (b) 319 K, 359 K; (c) 830 K (a) 0.0181 m3/s, 4.7 m/s; (b) 5.97 W 840 kW 2360 W/m2, 6100 W/m2 (a) 32.5 kW/m2, 126 kW/m2, 17.6 K/s, 68.6 K/s (a) 104 K/s; (b) 1251 K (b) 383°C 63 kg/s (a) 700 A 132 J/kg⋅K $0.0032/day (a) –0.084 K/s; (b) 439 K 3.2 h (a) 60.6×10-3 kg/s⋅m2, 121 g/m2; (b) 32.3×10-3 kg/s⋅m2 (a) 1010 W; (b) 1310 W 49°C (a) 7.13×10-3 m3/s; (b) 70°C (a) 47.0°C or 39.9°C (a) 86.7°C; (b) 47°C (a) –0.044 K/s; (b) 230 W, 230 W (a) 26°C; (b) 4.0 × 10-5 ℓ/s 12.2 W/m2⋅K, 12.2 W/m2⋅°C (a) 600 K 375 W/m2⋅K (a) 5500 W/m2; (b) 87.8°C (a) 5268 W; (b) 41°C 345°C (a) 84°C (a) 190.6 W (a) 153°C; (b) 16 W/m2⋅K (a) 386 W/m2; (b) 27.7°C; (c) 55%...