FinalSol - Oregon State University Physics 202 Final Exam...

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Oregon State University Physics 202 Final Exam Winter Term, 2010 (Form A) General directions : Only one sheet of paper (8.5” x 11”—both sides), with only handwritten notes, may be used during this exam. You may use any kind of calculator, provided that it is not part of a PDA, cell phone, palmtop or laptop—and that it is not transmitting any information wirelessly. Physical constants and other possibly useful information are provided here. Physical constants and other possibly useful information: P atm = 1.01 x 10 5 Pa g = 9.80 m/s 2 L f.water = 3.33 x 10 5 J/kg c water = 4190 J/(kg·K) c ice = 2090 J/(kg·K) k wood = d 0.2 W/(m·K) T K = T C + 273 N A = 6.02 x 10 23 k = 1.38 x 10 -23 J/K R = 8.31 J/(mol·K) σ = 5.67 x 10 -8 J/(s·m 2 K 4 ) V cube = s 3 SA cube = 6 s 2 Question #1: Your form letter will be given to you shortly before you turn in your exam. (If itʼs not written on the board by the time you F nish your exam, bring your form with your answer booklet to the proctor.) Enter it in the large box at the top of the F rst answer page. For questions 2- 16 : ±or multiple-choice or true/false items, write the letter of the one best answer in the appropriate box on the answer sheet. ±or questions requiring short answers (a word or short phrase only), write those in the spaces provided. Youʼre graded on your answers only—no need to show work. Assume 3 signiF cant digits and SI units in all numeric answers unless instructed otherwise. True/False (10 points each) 2. True or false? v rms is the average speed of a particle of monatomic ideal gas. F 3. True or false? Isobarically raising the thermal energy of 1 kg of helium by 100,000 J requires a greater heat input than achieving the same result isochorically. T 4. True or false? CP refrigerator can be less than 1. T 5. True or false? A monatomic ideal gas must rise in temperature if its pressure increases. F 6. True or false? Entropy is conserved in any isolated system. F 7. True or false? A Carnot heat engine cannot convert all its input heat to work. T Short Answer (10 points each) 8. How much work is required to isothermally double the density of 10 moles of a monatomic ideal gas at 20°C? 1.69 x 10
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This note was uploaded on 03/27/2010 for the course PH 202 taught by Professor Staff during the Spring '08 term at Oregon State.

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FinalSol - Oregon State University Physics 202 Final Exam...

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