Physical Science (12th Edition), Standalone Book
12th Edition
ISBN: 9781260150544
Author: Bill W. Tillery
Publisher: McGraw Hill Education
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Chapter 23, Problem 3PEA
To determine
The change in temperature of air due to condensation, having air volume
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The average thermal conductivity of the walls (including windows) and roof of a house in the figure shown below is 4.8 x 104 kW/m - °C, and their
average thickness is 21.4 cm. The house is heated with natural gas, with a heat of combustion (energy given off per cubic meter of gas burned) of
9,300 kcal/m3. How many cubic meters of gas must be burned each day to maintain an inside temperature of 24.0°C if the outside temperature is
0.0°C? Disregard surface air layers, radiation, and energy loss by heat through the ground.
34.68
Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all
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137.00
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00
8.00 m
10.0 m
The average thermal conductivity of the walls (including windows) and roof of a house in the figure shown below is 4.8 x 104 kW/m - °C, and their average thickness is 20.8 cm. The house is heated with natural gas, with a heat of combustion (energy given off per cubic
meter of gas burned) of 9,300 kcal/m3. How many cubic meters of gas must be burned each day to maintain an inside temperature of 27.3°C if the outside temperature is 0.0°C? Disregard surface air layers, radiation, and energy loss by heat through the ground.
m3
37.0
5.00 m
8.00 m
10.0 m
A parcel of air with a volume of 9.3 x 10 km that contains 4.8 x 10 kg of water vapor rises to an
altitude where all the water in the parcel condenses and then freezes. What is the change in temperature
of the parcel of air due to freezing? Assume the density of air at the condensation altitude is
7.2 x 10 g/m. The specific heat of air is 0.17 cal/g Co, the latent heat of vaporization of water is
540 cal/g, and the latent heat of fusion of water is 80 cal/g.) Express the answer in standard seientific
nötation.
AT=
x 10
Chapter 23 Solutions
Physical Science (12th Edition), Standalone Book
Ch. 23 -
1. Condensation of water vapor into clouds or fog...Ch. 23 - Prob. 2ACCh. 23 - 3. Which is not an example of precipitation?
a....Ch. 23 - Prob. 4ACCh. 23 - Prob. 5ACCh. 23 - Prob. 6ACCh. 23 - Prob. 7ACCh. 23 - Prob. 8ACCh. 23 - Prob. 9ACCh. 23 - Prob. 10AC
Ch. 23 - Prob. 11ACCh. 23 - Prob. 12ACCh. 23 -
13. The separation of charge associated with the...Ch. 23 -
14. An intense low-pressure area with widespread...Ch. 23 -
15. A hurricane does not have
a. gale...Ch. 23 - Prob. 16ACCh. 23 - Prob. 17ACCh. 23 -
18. The source of energy that drives the...Ch. 23 - Prob. 19ACCh. 23 -
20. A thunderstorm that occurs at 3 a.m. over a...Ch. 23 - Prob. 21ACCh. 23 - Prob. 22ACCh. 23 - Prob. 23ACCh. 23 - Prob. 24ACCh. 23 - Prob. 25ACCh. 23 - Prob. 26ACCh. 23 - Prob. 27ACCh. 23 - 28. A cloud is hundreds of tiny water droplets...Ch. 23 - Prob. 29ACCh. 23 - 30. In order for liquid cloud droplets at the...Ch. 23 - Prob. 31ACCh. 23 - 32. Which basic form of a cloud usually produces...Ch. 23 - Prob. 33ACCh. 23 - Prob. 34ACCh. 23 - Prob. 35ACCh. 23 - The basic difference between a tropical storm and...Ch. 23 - 37. Most of the great deserts of the world are...Ch. 23 - 38. The average temperature of a location is made...Ch. 23 - Prob. 39ACCh. 23 - Prob. 40ACCh. 23 - Prob. 41ACCh. 23 - Prob. 42ACCh. 23 - Prob. 43ACCh. 23 - 44. Precipitation that is formed by cycling...Ch. 23 - 45. The smallest, most violent weather event is a...Ch. 23 -
1. What is a cloud? Describe how a cloud forms.
Ch. 23 - 2. What is atmospheric stability? What does this...Ch. 23 - Prob. 3QFTCh. 23 - Prob. 4QFTCh. 23 - 5. What kinds of clouds and weather changes are...Ch. 23 - 6. Describe the wind direction, pressure, and...Ch. 23 - Prob. 7QFTCh. 23 - 8. Describe the three main stages in the life of a...Ch. 23 - 9. What is a tornado? When and where do tornadoes...Ch. 23 -
10. What is a hurricane? Describe how the weather...Ch. 23 -
11. How is climate different from the weather?
Ch. 23 - Prob. 12QFTCh. 23 -
13. Identify the four major factors that...Ch. 23 -
14. Since heated air rises, why is snow found on...Ch. 23 -
1. Explain why dew is not considered to be a form...Ch. 23 - 2. What are the significant similarities and...Ch. 23 - Prob. 3FFACh. 23 - 4. Describe several examples of regional climate...Ch. 23 - Prob. 1PEACh. 23 - Prob. 2PEACh. 23 - Prob. 3PEACh. 23 - Prob. 4PEACh. 23 - Prob. 5PEACh. 23 - Prob. 6PEACh. 23 - Prob. 7PEACh. 23 - Prob. 8PEACh. 23 - Prob. 9PEACh. 23 - Prob. 10PEACh. 23 - Prob. 11PEACh. 23 - Prob. 12PEACh. 23 - Prob. 13PEACh. 23 -
1. At a certain location, the surface temperature...Ch. 23 - 2. The surface temperature is 21°C, and the lapse...Ch. 23 - 3. A parcel of air with a volume of 5.2 103 km3...Ch. 23 - 4. A parcel of air with a volume of 9.1 104 km3...Ch. 23 - A parcel of air with a volume of 7.3 104 km3...Ch. 23 - Prob. 6PEBCh. 23 - 7. Atmospheric soundings from four weather...Ch. 23 - Prob. 8PEBCh. 23 - Prob. 9PEBCh. 23 - Prob. 10PEBCh. 23 - Prob. 11PEBCh. 23 -
12. The following table lists average monthly...Ch. 23 - Prob. 13PEB
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- The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0C is 1.244 kg/m3.)arrow_forwardThe average thermal conductivity of the walls (including windows) and roof of a house in the figure shown below is 4.8 10-4 kW/m · °C, and their average thickness is 20.8 cm. The house is heated with natural gas, with a heat of combustion (energy given off per cubic meter of gas burned) of 9,300 kcal/m3. How many cubic meters of gas must be burned each day to maintain an inside temperature of 25.9°C if the outside temperature is 0.0°C? Disregard surface air layers, radiation, and energy loss by heat through the ground. m3 A house has a rectangular base and a roof that peaks along a line above the center of the house and parallel to the length of the house. This roof slopes downward from the peak to each edge at an angle of 37.0° with the horizontal. The length of the front of the house is 10.0 meters. The width of the house is 8.00 meters. The height from the front of the house up to the edge of the roof is 5.00 meters.arrow_forwardThe average thermal conductivity of the walls (including windows) and roof of a house in the figure shown below is 4.8 x 104 kW/m · °C, and their average thickness is 21.4 cm. The house is heated with natural gas, with a heat of combustion (energy given off per cubic meter of gas burned) of 9,300 kcal/m3. How many cubic meters of gas must be burned each day to maintain an inside temperature of 23.5°C if the outside temperature is 0.0°C? Disregard surface air layers, radiation, and energy loss by heat through the ground. 37.00 5.00 m 8,00 m 10.0 marrow_forward
- Consider a person standing in a room at 20°C with an exposed surface area of 1.7 m2. The deep body temperature of the human body is 37°C, and the thermal conductivity of the human tissue near the skin is about 0.3 W/m K. The body is losing heat at a rate of 150 W by natural convection and radiation to the surroundings. Taking the body temperature 0,5 cm beneath the skin to be 37°C, determine the skin temperature of the person.arrow_forwardFor a cube-shaped room, 10 ft on a side, what will be the rate of heat loss if the R-value is 4 ft2-°F-hr/Btu for each side and the temperature difference is 50°F? Consider heat loss through all four walls, the ceiling, and the floor. 1200 Btu/hr 800 Btu/hr 5000 Btu/hr 7500 Btu/hr 12,000 Btu/hr Submitarrow_forwardThe inner and outer surfaces of a 0.5-cm thick 2-m x 2-m window glass in winter are 10°C and 3°C, respectively. If the thermal conductivity of the glass is 0.78 W/m-K,determine the amount of heat loss through the glass over a period of 5 h. What would your answer be if the glass were 1 cm thick?arrow_forward
- The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T = 40°C and the corresponding convection coefficient is h₁ = 30 W/m².K, what are the inner and outer surface temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T = -27.5°C and the associated convection coefficient is h, = 65 W/m².K? *0,0 Evaluate the properties of the glass at 300 K. Ts,i = Tse = i i °℃ °Carrow_forwardThe wind-chill index is modeled by the function W = 13.12 + 0.6215T – 11.37v0.16 + 0.3965TV0.16 where T is the temperature (°C) and v is the wind speed (km/h). When T = -19°C and v = 39 km/h, by how much would you expect the apparent temperature W to drop if the actual temperature decreases by 1°C? (Round your answers to two decimal places.) °C What if the wind speed increases by 1 km/h? ㅇCarrow_forwardSuppose you walk into a sauna that has an ambient temperature of 41.5°C, your skin has a temperature of 37.0°C, an emissivity of 0.98, and the surface area of your body is 1.60 m². If all other forms of heat transfer are balanced (net zero), at what rate will your body temperature increase if your mass is 54kg? (Assume 3500 J/(kg °C) is the specific heat of the human body.) O 0.111 °C/min O 0.0111 °C/min. O 0.0155 °C/min O 0.155 °C/minarrow_forward
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