ME200HomeworkAnswers_Lects21-30_2010Spring

ME200HomeworkAnswers_Lects21-30_2010Spring - ME 200...

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ME 200 – Thermodynamics I Spring 2010 Answers to Assigned Homework Problems Lectures 21 through 30 5.3 (a) Possible; (b) Possible; (c) Impossible; (d) Indeterminate; (e) Possible; (f) Impossible; (g) Indeterminate 5.8 (a) Not attached; (b) Not attached SP21 (a) Impossible; (b) Possible; (c) Possible; (d) Indeterminate; (e) Indeterminate; (f) Impossible; (g) Possible 5.17 (a) Irreversible; (b) Reversible; (c) Impossible; (d) Impossible 5.20 (a) 75%; (b) 1610 kJ, 610 kJ; (c) 790 F; (d) 327 C 5.34 (a) 5.57 × 10 8 Btu/hr; (b) 2.18 × 10 8 Btu/hr SP22 (a) 2250 W; (b) -29.2 C; (c) power consumption higher and COP lower 5.50 (a) Impossible; (b) Reversible; (c) Irreversible 5.63 (a) 4.4 kW; (b) 239.7 K; (c) 0.12 kW SP23 (a) Possible; (b) Impossible; (c) Impossible 5.77 (a) 600 K, 300 K; (b) 769 kPa, 0.224 m 3 ; (c) q 12 = +50 kJ, w 12 = +50 kJ; q 23 = 0 w 23 = +220.7 kJ; q 34 = -25 kJ, w 34 = -25 kJ; q 41 = 0, w 41 = -220.7 kJ ; (d) Not attached 5.84 (a) Possible; (b) Internally Reversible; (c) Impossible
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ME200HomeworkAnswers_Lects21-30_2010Spring - ME 200...

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