Problem 1E Problem 2E Problem 3E: 3. The driver’s compartment of race cars can reach 60°C during a race. Why?
Problem 4E: 4. What causes changes in atmospheric pressure?
Problem 5E: 5. Why are passenger airplane cabins normally pressurized during flight?
Problem 6E: 6. Laura takes an elevator from the tenth floor of her office building to the lobby. Should she... Problem 7E: 7. How do dermatologists remove precancerous skin blemishes cryosurgically?
Problem 8E: 8. When one walks barefoot from a carpet onto a ceramic tile floor, the tiles feel colder than the... Problem 9E: 9. Why does ocean water temperature vary with depth?
Problem 10E: 10. Are the systolic and diastolic pressures reported in blood pressure measurements absolute, gage,... Problem 11E: 11. How do forehead temperature strips work?
Problem 12E: 12. How does a pressure measurement of 14.7 psig differ from a pressure measurement of 14.7 psia?
Problem 13E: 13. What is a nanotubel
Problem 14E: 14. If a system is at steady state, does this mean intensive properties are uniform with position... Problem 1CU: For problems 1-10, match the appropriate definition In the right column with each term In the left... Problem 11CU Problem 12CU: 12. Describe the difference between specific volume expressed on a mass basis and a molar basis... Problem 13CU: 13. A system is said to be at ___________ if none of its properties changes with time.
Problem 14CU: 14. A control volume is a system that
(a) always contains the same matter.
(b) allows a transfer of... Problem 15CU: 15. What is the objective of an engineering model in thermodynamic analysis?
Problem 16CU: 16. _______________ is pressure with respect to the zero pressure of a complete vacuum.
Problem 17CU: 17. A gas contained within a piston–cylinder assembly undergoes Process 1–2–3 shown on the... Problem 18CU: 18. The statement, “When two objects are in thermal equilibrium with a third object, they are in... Problem 19CU: 19. SI base units include
(a) kilogram (kg), meter (m), newton (N).
(b) kelvin (K). meter (m),... Problem 20CU: 20. Explain why the value for gage pressure is always less than the corresponding value for absolute... Problem 21CU: 21. A system is at steady state if
(a) none of its properties changes with time.
(b) none of its... Problem 22CU Problem 23CU: 23. Classify items a through g shown on the pressure-specific volume diagram in Fig. P1.23C as a... Problem 24CU: 24. When a system is isolated,
(a) its mass remains constant.
(b) its temperature may change.
(c)... Problem 25CU: 25. The resultant pressure force acting on a body completely or partially submerged in a liquid is... Problem 26CU: 26. The list consisting only of intensive properties is
(a) volume, temperature, pressure.
(b)... Problem 27CU: 27. Gage pressure indicates the difference between the absolute pressure of a system and the... Problem 28CU: 28. Systems can be studied only from a macroscopic point of view.
Problem 29CU: 29. Kilogram, second, foot, and newton are all examples of SI units.
Problem 30CU Problem 31CU: 31. Mass is an intensive property.
Problem 32CU Problem 33CU: 33. Intensive properties may be functions of both position and time, whereas extensive properties... Problem 34CU: 34. Devices that measure pressure include barometers. Bourdon tube gages, and manometers.
Problem 35CU Problem 36CU: 36. If a system is isolated from its surroundings and no changes occur in its observable properties,... Problem 37CU: 37. The specific volume is the reciprocal of the density.
Problem 38CU:
Indicate whether the following statements are true or false. Explain.
Volume is an extensive... Problem 39CU: 39. The pound force, lbf, is equal to the pound mass, lb.
Problem 40CU: 40. The value of a temperature expressed using the Rankine scale is always higher than its value... Problem 41CU Problem 42CU: 42. A closed system always contains the same matter; there is no transfer of matter across its... Problem 43CU Problem 44CU: 44. A control volume is a special type of closed system that does not interact in any way with its... Problem 45CU: 45. When a closed system undergoes a process between two specified states, the change in temperature... Problem 46CU Problem 47CU Problem 48CU: 48. A vessel holding 0.5 kg of oxygen (O2) contains 16 lb of O2.
Problem 49CU Problem 50CU: 50. In local surroundings at standard atmospheric pressure, a gage will indicate a pressure of 0.2... Problem 51CU Problem 52CU: 52. The Rankine degree is a smaller temperature unit than the Kelvin degree.
Problem 53CU: 53. If the value of any property of a system changes with time, that system cannot be at steady... Problem 54CU Problem 55CU: 55. The composition of a closed system cannot change.
Problem 56CU: 56. Temperature is the property that is the same for each of two systems when they are in thermal... Problem 57CU Problem 58CU: 58. The pressure unit psia indicates an absolute pressure expressed in pounds force per square... Problem 4P: 1.4 Perform the following unit conversions:
(a) 1 L to in.3
(b) 650 J to Btu
(c) 0.135 kW to ft ∙... Problem 5P: 1.5 Perform the following unit conversions:
(a) 122 in.3 to L
(b) 778.17 ft ∙ Ibf to kJ
(c) 100 hp... Problem 6P: 1.6 Which of the following food items weighs approximately 1 newton?
a. a grain of rice
b. a small... Problem 7P: 1.7 A person whose mass is 150 lb weighs 144.4 Ibf. Determine (a) the local acceleration of gravity,... Problem 8P: 1.8 The Phoenix with a mass of 350 kg was a spacecraft used for exploration of Mars. Determine the... Problem 9P Problem 10P: 1.10 In severe head-on automobile accidents, a deceleration of 60 g's or more (1 g = 32.2 ft/s2)... Problem 11P Problem 12P: 1.12 A spring compresses in length by 0.14 in, for every 1 Ibf of applied force. Determine the mass... Problem 13P: 1.13 At a certain elevation, the pilot of a balloon has a mass of 120 lb and a weight of 119 Ibf.... Problem 14P: 1.14 Estimate the magnitude of the force, in Ibf, exerted on a 12-lb goose in a collision of... Problem 15P: 1.15 Determine the upward applied force, in Ibf, required to accelerate a 4.5-lb model rocket... Problem 16P:
1.16 An object is subjected to an applied upward force of 10 Ibf. The only other force acting on... Problem 17P: 1.17 A communications satellite weighs 4400 N on Earth where g = 9.81 m/s2. What is the weight of... Problem 18P: 1.18 Using local acceleration of gravity data from the Internet, determine the weight, in N, of a... Problem 19P: 1.19 A town has a 1-million-gallon storage capacity water tower. If the density of water is 62.4... Problem 20P: 1.20 A closed system consists of 0.5 kmol of ammonia occupying a volume of 6 m3. Determine (a) the... Problem 21P: 1.21 A 2-lb sample of an unknown liquid occupies a volume of 62.6 in.3 For the liquid determine (a)... Problem 22P Problem 23P: 1.23 The specific volume of 5 kg of water vapor at 1.5 MPa, 440°C is 0.2160 m3/kg. Determine (a) the... Problem 24P Problem 25P: 1.25 As shown in Figure P1.25, a gas is contained in a piston-cylinder assembly. The piston mass and... Problem 26P: 1.26 As shown in Fig. P1.26, a vertical piston-cylinder assembly containing a gas is placed on a hot... Problem 27P: 1.27 Three kg of gas in a piston-cylinder assembly undergo a process during which the relationship... Problem 28P: 1.28 A closed system consisting of 4 lb of a gas undergoes a process during which the relation... Problem 29P: 1.29 A system consists of carbon monoxide (CO) in a piston-cylinder assembly, initially at p1 = 200... Problem 30P: 1.30 Figure P1.30 shows a gas contained in a vertical piston-cylinder assembly. A vertical shaft... Problem 31P: 1.31 A gas contained within a piston-cylinder assembly undergoes four processes in series:
Process... Problem 32P Problem 33P: 1.33 Figure P 1.33 shows a storage tank holding natural gas. In an adjacent instrument room, a... Problem 34P: 1.34 As shown in Figure PI.34, the exit of a gas compressor empties into a receiver tank,... Problem 35P: 1.35 The barometer shown in Fig. P1.35 contains mercury (ρ = 13.59 g/cm3). If the local atmospheric... Problem 36P Problem 37P: Figure P1.37 shows a tank within a tank, each containing air. Pressure gage A, which indicates... Problem 38P: 1.38 As shown in Fig. PI.38, an underwater exploration vehicle submerges to a depth of 1000 ft. If... Problem 39P: 1.39 Show that a standard atmospheric pressure of 760 mmHg is equivalent to 101.3 kPa. The density... Problem 40P: 1.40 A gas enters a compressor that provides a pressure ratio (exit pressure to inlet pressure)... Problem 41P: 1.41 As shown in Figure P1.41. air is contained in a vertical piston-cylinder assembly such that the... Problem 42P Problem 43P: 1.43 The pressure from water mains located at street level may be insufficient for delivering water... Problem 44P: 1.44 Figure P1.44 shows a tank used to collect rainwater having a diameter of 4 m. As shown in the... Problem 45P: 1.45 If the water pressure at the base of the water tower shown in Fig, P1.45 is 4.15 bar, determine... Problem 46P: 1.46 As shown in Figure P1.46. an inclined manometer is used to measure the pressure of the gas... Problem 47P: 1.47 Figure P1.47 shows a spherical buoy, having a diameter of 1.5 m and weighing 8500 N, anchorcd... Problem 48P: 1.48 Because of a break in a buried oil storage tank, ground water has leaked into the tank to the... Problem 49P: 1.49 Figure P1.49 shows a closed tank holding air and oil to which is connected a U-tube mercury... Problem 50P: 1.50 The 30-year average temperature in Toronto, Canada, during summer is 19.5°C and during winter... Problem 51P: 1.51 Convert the following temperatures from °F to °C: (a) 86°F, (b) -22°F, (c) 50°F, (d) −40°F. (e)... Problem 52P Problem 53P: 1.53 A cake recipe specifies an oven temperature of 350°F. Express this temperature in °R, K, and... Problem 54P: 1.54 Does the Rankine degree represent a larger or smaller temperature unit than the Kelvin degree?... Problem 55P: 1.55 Figure P1.55 shows a system consisting of a cylindrical copper rod insulated on its lateral... Problem 56P: What is (a) the lowest naturally occurring temperature recorded on Earth, (b) the lowest temperature... Problem 57P: 1.57 Air temperature rises from a morning low of 42°F to an afternoon high of 70°F.
(a) Express... Problem 58P: 1.58 For liquid-in-glass thermometers, the thermometric property is the change in length of the... format_list_bulleted