THERMODYNAMICS(SI UNITS,INTL.ED)EBOOK>I
8th Edition
ISBN: 9781307434316
Author: CENGEL
Publisher: INTER MCG
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Textbook Question
Chapter 1.11, Problem 65P
Reconsider Prob. 1–61. Using appropriate software, investigate the effect of the manometer fluid density in the range of 800 to 13,000 kg/m3 on the differential fluid height of the manometer. Plot the differential fluid height against the density, and discuss the results.
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1-69 Freshwater and seawater flowing in parallel horizontal
pipelines are connected to each other by a double U-tube
manometer, as shown in Fig. Pl-69. Determine the pressure
difference between the two pipelines. Take the density of sea-
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umn be ignored in the analysis?
Air
Fresh
water
40 cm
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` Mercury
FIGURE P1-69
1-111
manometer, often one arm of the manometer is inclined to
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arm is inclined 35° from the horizontal, as shown in Fig.
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The force generated by a spring is given by F = kx, where k is the spring constant and x is the deflection of the spring. The spring of Fig. P1–99 has a spring constant of 8 kN/cm. The pressures are P1 = 5000 kPa, P2 = 10,000 kPa, and P3 = 1000 kPa. If the piston diameters are D1 = 8 cm and D2 = 3 cm, how far will the spring be deflected?
1-53 The water in a tank is pressurized by air, and the pres-
sure is measured by a multifluid manometer as shown in
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h = 0.2 m, h, = 0.3 m, and h, = 0.46 m. Take the densities
of water, oil, and mercury to be 1000 kg/m'. 850 kg/m, and
13.600 kg/m, respectively.
Oil
Aic
Mercuty
FIGURE P1-53
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1-56 The absolute pressure in water at a depth of 5 m is
read to be 145 kPa. Determine (a) the local atmospheric pres-
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uid whose specifc gravity is 0.85 at the same location.
Neglectin
eration,
average
1-64
Scanned with CamScanner
D
FIGURE P1-58E
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and D, = 4 cm. When the pressure in chamber 2 is 2000 kPa
and the pressure in chamber 3 is 700 kPa, what is the pres-
Chapter 1 Solutions
THERMODYNAMICS(SI UNITS,INTL.ED)EBOOK>I
Ch. 1.11 - What is the difference between the classical and...Ch. 1.11 - The value of the gravitational acceleration g...Ch. 1.11 - One of the most amusing things a person can...Ch. 1.11 - An office worker claims that a cup of cold coffee...Ch. 1.11 - 1–5C What is the difference between kg-mass and...Ch. 1.11 - Explain why the light-year has the dimension of...Ch. 1.11 - What is the net force acting on a car cruising at...Ch. 1.11 - 1–8 At 45° latitude, the gravitational...Ch. 1.11 - What is the weight, in N, of an object with a mass...Ch. 1.11 - A 3-kg plastic tank that has a volume of 0.2 m3 is...
Ch. 1.11 - Prob. 11PCh. 1.11 - Prob. 12PCh. 1.11 - Solve Prob. 113 using appropriate software. Print...Ch. 1.11 - A 4-kW resistance heater in a water heater runs...Ch. 1.11 - A 150-lbm astronaut took his bathroom scale (a...Ch. 1.11 - The gas tank of a car is filled with a nozzle that...Ch. 1.11 - Prob. 17PCh. 1.11 - A large fraction of the thermal energy generated...Ch. 1.11 - Prob. 19PCh. 1.11 - 1–20C A can or soft drink at room temperature is...Ch. 1.11 - What is the difference between intensive and...Ch. 1.11 - Is the number of moles of a substance contained in...Ch. 1.11 - Is the state of the air in an isolated room...Ch. 1.11 - The specific weight of a system is defined as the...Ch. 1.11 - What is a quasi-equilibrium process? What is its...Ch. 1.11 - Define the isothermal, isobaric, and isochoric...Ch. 1.11 - Prob. 27PCh. 1.11 - Prob. 28PCh. 1.11 - 1–29C What is specific gravity? How is it related...Ch. 1.11 - 1–31C What are the ordinary and absolute...Ch. 1.11 - Prob. 32PCh. 1.11 - Prob. 33PCh. 1.11 - Prob. 34PCh. 1.11 - Prob. 35PCh. 1.11 - Prob. 36PCh. 1.11 - Prob. 37PCh. 1.11 - Prob. 38PCh. 1.11 - The temperature of a system drops by 45F during a...Ch. 1.11 - Explain why some people experience nose bleeding...Ch. 1.11 - A health magazine reported that physicians...Ch. 1.11 - Someone claims that the absolute pressure in a...Ch. 1.11 - 1–43C Express Pascal’s law, and give a real-world...Ch. 1.11 - Consider two identical fans, one at sea level and...Ch. 1.11 - A vacuum gage connected to a chambee reads 35 kPa...Ch. 1.11 - Prob. 46PCh. 1.11 - 1–47E The pressure in a water line is 1500 kPa....Ch. 1.11 - 1–48E If the pressure inside a rubber balloon is...Ch. 1.11 - A manometer is used to measure the air pressure in...Ch. 1.11 - 1–50 The water in a tank is pressurized by air,...Ch. 1.11 - 1–51 Determine the atmospheric pressure at a...Ch. 1.11 - A 200-pound man has a total foot imprint area of...Ch. 1.11 - The gage pressure in a liquid at a depth of 3 m is...Ch. 1.11 - The absolute pressure in water at a depth of 9 m...Ch. 1.11 - 1–55E Determine the pressure exerted on the...Ch. 1.11 - 1–56 Consider a 70-kg woman who has a total foot...Ch. 1.11 - Prob. 57PCh. 1.11 - The barometer of a mountain hiker reads 750 mbars...Ch. 1.11 - The basic barometer can be used to measure the...Ch. 1.11 - Prob. 61PCh. 1.11 - A gas is contained in a vertical, frictionless...Ch. 1.11 - Reconsider Prob. 158. Using appropriate software,...Ch. 1.11 - Both a gage and a manometer are attached to a gas...Ch. 1.11 - Reconsider Prob. 161. Using appropriate software,...Ch. 1.11 - A manometer containing oil ( = 850 kg/m3) is...Ch. 1.11 - A mercury manometer ( = 13.600 kg/m3) is connected...Ch. 1.11 - Repeat Prob. 165 for a differential mercury height...Ch. 1.11 - The pressure in a natural gas pipeline is measured...Ch. 1.11 - Repeat Prob. 167E by replacing air with oil with a...Ch. 1.11 - Blood pressure is usually measure by wrapping a...Ch. 1.11 - The maximum blood pressure in the upper arm of a...Ch. 1.11 - Prob. 73PCh. 1.11 - Consider a U-tube whose arms are open to the...Ch. 1.11 - Consider a double-fluid manometer attached to an...Ch. 1.11 - Prob. 76PCh. 1.11 - Prob. 77PCh. 1.11 - Calculate the absolute pressure. P1, of the...Ch. 1.11 - Consider the manometer in Fig. 173. If the...Ch. 1.11 - Consider the manometer in Fig. 173. If the...Ch. 1.11 - Consider the system shown in Fig. 177. 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- 1-75 Consider a double-fluid manometer attached to an air pipe shown in Fig. Pl-75. If the specific gravity of one fluid is 13.55, determine the specific gravity of the other fluid for the indicated absolute pressure of air. Take the atmospheric pressure to be 100 kPa. Answer: 5.0 Air P = 76 kPa 40 cm SG 22 cm SG 13.55arrow_forward1-75 Consider a double-fluid manometer attached to an air pipe shown in Fig. P1-75. If the specific gravity of one fluid is 13.55, determine the specific gravity of the other fluid for the indicated absolute pressure of air. Take the atmospheric pressure to be 100 kPa. Answer: 5.0 Air P = 76 kPa 40 cm SG2 22 сm SG¡ = 13.55arrow_forwardCalculate the absolute pressure, P1, of the manometer shown in Fig. P1–73 in kPa. The local atmospheric pressure is 758 mmHg.arrow_forward
- 1-74 Consider a U-tube whose arms are open to the atmo- sphere. Now water is poured into the U-tube from one arm. and light oil (p = 790 kg/m') from the other. One arm con- tains 70-cm-high water, while the other arm contains both fluids with an oil-to-water height ratio of 4. Determine the height of each fluid in that arm. -69 Oil 70 cm Water FIGURE P1-74arrow_forward1-74 Consider a U-tube whose arms are open to the atmo- sphere. Now water is poured into the U-tube from one arm, and light oil (p tains 70-cm-high water, while the other arm contains both fluids with an oil-to-water height ratio of 4. Determine the height of each fluid in that arm. 790 kg/m') from the other. One arm con- Oil 70 cm Water FIGURE P1-74 hparrow_forward1-108 A glass tube is attached to a water pipe, as shown in Fig. P1-108. If the water pressure at the bottom of the tube is 110 kPa and the local atmospheric pressure is 99 kPa, deter- mine how high the water will rise in the tube, in m. Take the density of water to be 1000 kg/m³. Patm = 99 kPa h = ? Water FIGURE P1-108arrow_forward
- 1-50 The water in a tank is pressurized by air, and the pressure is measured by a multifluid manometer as shown in Fig. P1-50. Determine the gage pressure of air in the tank if 0.2 m, h, = 0.3 m, and h, of water, oil, and mercury to be 1000 kg/m³, 850 kg/m², and 13,600 kg/m², respectively. 0.4 m. Take the densities Oil Air 1 2 h2 Water Mercury FIGURE P1-50arrow_forward1-31C Consider an alcohol and a mercury thermometer that read exactly 0°C at the ice point and 100°C at the steam point. The distance between the two points is divided into 100 equal parts in both thermometers. Do you think these thermometers will give exactly the same reading at a temper- ature of, say, 60°C? Explain.arrow_forward1-99 The force generated by a spring is given by F=kx, where k is the spring constant and x is the deflection of the spring. The spring of Fig. Pl–99 has a spring constant of 8 kN/cm. The pressures are P, = 5000 kPa, P, = 10,000 kPa, and P = 1000 kPa. If the piston diameters are D, = 8 cm and D, = 3 cm, how far will the spring be deflected? Answer: 1.72 cm %3D D2 P2 Spring - P3 P1 DIarrow_forward
- 1-109E Consider a U-tube whose arms are open to the atmosphere. Now equal volumes of water and light oil (p 49.3 lbm/ft') are poured from different arms. A person blows from the oil side of the U-tube until the contact surface of the two fluids moves to the bottom of the U-tube, and thus the liquid levels in the two arms are the same. If the fluid height in each arm is 30 in, determine the gage pressure the person exerts on the oil by blowing. -Air Oil Water 30 in FIGURE P1-109Earrow_forward1-71 Consider a U-tube whose arms are open to the atmo- sphere. Now water is poured into the U-tube from one arm, and light oil (p = 790 kg/m³) from the other. One arm contains 70-cm-high water, while the other arm contains both fluids with an oil-to-water height ratio of 4. Determine the height of each fluid in that arm. Hello, please solve the quesțion without explanation with mentioning my name in (((morteza Ali Qasim))))paper and a beautiful font. Thank you doctor. Oil 70 cm Water Don't forget my name, please, God bless you FIGURE P1-71arrow_forwardRepeat Prob. 1–78 for a gage pressure of 40 kPa.arrow_forward
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