Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 36TAS
If the relative humidity of an air mass is 70% and the air temperature is 20°C, what is the capacity? What is the humidity? What is the dew point temperature?
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4.2. What is the normal range of the air relative humidity for residential premises?
Choose the correct answer:
1. 20-40%;
2.
20-50%;
3.
30-60%;
4.
35-70%;
5.
40-80%;
The barometer shows a value of 770 mm Hg; dry bulb temperature is 45°C; wet bulb temperature is 30°C. Specify:
a. Relative Humidity (RH) = %
b. Absolute humidity. = (kg of water / kg of air)
c. Dew point temperature. = °C
What is absolute humidity? Mixing ratio? Vapor pressure?
Chapter 25 Solutions
Conceptual Physical Science (6th Edition)
Ch. 25 - What is the difference between humidity and...Ch. 25 - Why does relative humidity increase at night?Ch. 25 - As air temperature decreases, does relative...Ch. 25 - What does saturation point have to do with dew...Ch. 25 - What happens to the water vapor in saturated air...Ch. 25 - Prob. 6RCQCh. 25 - Prob. 7RCQCh. 25 - When water vapor condenses to liquid water, is...Ch. 25 - Prob. 9RCQCh. 25 - Explain why warm air rises and cools as it expands
Ch. 25 - When a parcel of air rises, does it become warmer,...Ch. 25 - Prob. 12RCQCh. 25 - Name at least two ways in which thermal energy in...Ch. 25 - Name at least two ways in which thermal energy in...Ch. 25 - Prob. 15RCQCh. 25 - Prob. 16RCQCh. 25 - Prob. 17RCQCh. 25 - Name the cloud form associated with (a) the hazy...Ch. 25 - Prob. 19RCQCh. 25 - Prob. 20RCQCh. 25 - Are clouds that have vertical development...Ch. 25 - Prob. 22RCQCh. 25 - Prob. 23RCQCh. 25 - Explain how a convection cycle is generated.Ch. 25 - Prob. 25RCQCh. 25 - Differentiate between a cold front and a warm...Ch. 25 - What are the three main atmospheric lifting...Ch. 25 - Under what conditions does orographic...Ch. 25 - How do downdrafts form in thunderstorms?Ch. 25 - Prob. 30RCQCh. 25 - What happens when water vapor in a can suddenly...Ch. 25 - Search the sky for passing jets anti look for the...Ch. 25 - At 50F the maximum amount of water vapor in air is...Ch. 25 - In this problem, temperature is held constant but...Ch. 25 - In this problem, humidity is held constant but...Ch. 25 - If the relative humidity of an air mass is 70% and...Ch. 25 - What are the airs temperature and the dew point...Ch. 25 - At sea level, an air parcel at 20C has a relative...Ch. 25 - On a mountain top (elevation 2 km), an air parcel...Ch. 25 - What is the difference between weather and...Ch. 25 - Why does dew form on the ground during dear, calm...Ch. 25 - Why does a July day in the Gulf of Mexico...Ch. 25 - Would you expect a glass of water to evaporate...Ch. 25 - During a summer visit to Cancun, Mexico, you stay...Ch. 25 - After a day of skiing in the Rocky Mountains, you...Ch. 25 - Why are saturation and condensation more likely to...Ch. 25 - Distinguish between dew and frost.Ch. 25 - What is the relationship between capacity and...Ch. 25 - When the condensation rate is greater than the...Ch. 25 - In which atmospheric layer does all our weather...Ch. 25 - Prob. 57ECh. 25 - What is the difference between specific humidity...Ch. 25 - What happens to relative humidity when temperature...Ch. 25 - Why does warm, moist air blowing over cold water...Ch. 25 - When compared to calm and clear nights, why are...Ch. 25 - Can the temperature of an air mass change if heat...Ch. 25 - When does an adiabatic process happen in the...Ch. 25 - Why do clouds tend to form above mountain peaks?Ch. 25 - Which air parcel will have the greater temperature...Ch. 25 - The density of air is generally given as mass per...Ch. 25 - Two air parcels with the same temperature (25C)...Ch. 25 - Prob. 68ECh. 25 - Give three ways in which heat can be added to an...Ch. 25 - Prob. 70ECh. 25 - Prob. 71ECh. 25 - Prob. 72ECh. 25 - What accounts for the large spaces of blue sky...Ch. 25 - Why dont cumulus clouds form over cool water?Ch. 25 - Prob. 75ECh. 25 - Prob. 76ECh. 25 - How can altostratus clouds change into altocumulus...Ch. 25 - Prob. 78ECh. 25 - Prob. 79ECh. 25 - Prob. 80ECh. 25 - Prob. 81ECh. 25 - Prob. 82ECh. 25 - Prob. 83ECh. 25 - Prob. 84ECh. 25 - In simplest terms, what is an occluded front?Ch. 25 - Prob. 86ECh. 25 - Prob. 87ECh. 25 - What is the name of the cold, dry air mass that...Ch. 25 - In the spring months, what happens when cold, dry...Ch. 25 - Sinking air warms, and yet the downdrafts in a...Ch. 25 - Prob. 91ECh. 25 - Prob. 92ECh. 25 - What is the source of the enormous amount of...Ch. 25 - In what part of the United States do tornadoes...Ch. 25 - On a broadcast news report, you hear that a...Ch. 25 - Prob. 96ECh. 25 - The accuracy of weather forecasts depends on great...Ch. 25 - Prob. 98ECh. 25 - What is an occluded front, and how is it indicated...Ch. 25 - Prob. 100DQCh. 25 - Clouds can act like a blanket around Earththey can...Ch. 25 - Prob. 102DQCh. 25 - Prob. 103DQCh. 25 - Prob. 104DQCh. 25 - Air that contains the maximum amount of water...Ch. 25 - In most midlatitude cyclones, the warm front (a)...Ch. 25 - Prob. 3RATCh. 25 - When air sinks, it (a) compresses and warms. (b)...Ch. 25 - When upper regions of the atmosphere are warmer...Ch. 25 - A key factor needed for precipitation to occur is...Ch. 25 - For clouds to form, air must be lifted. The...Ch. 25 - As air temperature decreases, relative humidity...Ch. 25 - In the Northern Hemisphere, tornadoes and...Ch. 25 - When air is saturated, the condensation rate (a)...
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- What would be the classifications of the air masses that form over the following source regions? (a) Sahara Desert (b) Antarctic Ocean (c) Greenland (d) mid-Pacific Ocean (e) Siberiaarrow_forwardComparing 1 m3 of air with 100% relative humidity at 0°C and 1 m3 of the air with 100% relative humidity at 30°C, choose the correct statement. Group of answer choices They both have the same amount of water. They both have the same absolute humidity. The air at 0°C has more water in it. The air at 30°C has more water in it.arrow_forwardOn a summer day in Houston, the temperature is 35 C and the realative humidity is 77 percent A) What is the humidity? B) To what temperature could the air be cooled before condensation starts to take place? (That is, what is the dew point?)arrow_forward
- If the room temperature is 23℃ and the relative humidity (RH) is 50%, what is the dew point??arrow_forwardExplain how hail forms? You need to understand that the middle part of a cumulonimbus cloud, where the air temperature is between -40° C and 0° C, there exists a combination of ice and supercooled liquid water droplets, which are cloud droplets that remain liquid even though the temperature is below the normal freezing point of liquid water. This should be part of your explanation. How large can hail get? Why are strong updrafts necessary to produce extremely large hail?arrow_forwardQuestion 7 1 pts Using a sling psychrometer, you measure the air temperature to be 12°C and the wet-bulb temperature to be 8°C. What is the relative humidity? O 74% O 100% O 16% O 57% Question 8 1 pts Using a sling psychrometer, you measure the air temperature to be 12°C and the wet-bulb temperature to be 8°C. According to the chart in the Lab 8 background page, how humid does it feel? Dry (pleasant) O Sticky (unpleasant) O Muggy (gross) Hint of humidity (still comfortablejarrow_forward
- How does wind affect temperature? Explain why this occurs.arrow_forwardIf the average normal temperature decreases with altitude in the troposphere is 6.5 °C/km, calculate the approximate temperature at 6 km if the surface temperature is 16 °C. Lapse rate = 0.005645 degC/marrow_forwardWhich atmospheric measurement is a measure of moisture or water vapor in the air relative to the total the air can hold in grams of water vapor per kilogram of air (g/m3) and uses a hygrometer or psychrometer to take measurements? Group of answer choices Air Pressure Humidity Temperature Wind Direction Which type of cloud tends to be fluffy with a vertical appearance? Group of answer choices Cumulus Stratus None of these Cirrus Which term describes the circular movement of heat in fluids, including water and air, with warm molecules rising and cooler molecules falling? Group of answer choices Radiation Conduction None of these Convectionarrow_forward
- Relative humidity usually is highest right before sunrise. Why does this occur?arrow_forwardSummers in Georgia are brutal. The statement: "It gets so hot and humid during the summer that the temperature makes it 100°F and the humidity is 100%." Is this statement correct? Why or why not?arrow_forwardA weatherman carried an aneroid barometer from the ground floor to his office atop the Sears Tower in Chicago. On the ground level, the barometer read 102.09962 kPa absolute; topside it read 28.607 in. Hg absolute. Assume that the average atmospheric air density was 0.075 lb/ft³ and estimate the height of the building. 1455 ft 1889 ft 1250 ft 1355 ftarrow_forward
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