Applied Physics
11th Edition
ISBN: 9780132719865
Author: EWEN, Dale
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 14.4, Problem 25P
The cooling system of a truck engine contains 20.0 L of water. (1 L of water has a mass of 1 kg. ) (a) If the engine is run until 845 kJ of heat is added, what is the change in temperature of the water? (b) In the winter, the system was filled with 20.0 L of ethyl alcohol with density 0.800 g/cm3. If the ethyl alcohol absorbed the same 845 kJ of heat, what would be the increase in temperature of the alcohol? (c) Would ethyl alcohol or water be a better coolant? Why?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Ice of mass 12.8 kg at 0°C is placed in an ice chest. The ice chest has 2.7 cm thick walls of thermal conductivity 0.07 W/m·K and a surface area of 1.29 m2. Express your answers with appropriate mks units.
(a) How much heat must be absorbed by the ice during the melting process?
(b) If the outer surface of the ice chest is at 39° C, how long will it take for the ice to melt?
How much heat transfer is required to raise the temperature of a 800 g aluminum pot containing 2000 g of water from 20C to the
boiling point and then boil away 400 g of water? (b) How long does this take if the rate of heat transfer is 400 W?
(specific heat capacity of water = 4.2 J/g C, specific heat capacity of aluminum = 0.9 J/g C latent heat of vaporization of water = 2260 J/g
In very cold weather, a significant mechanism for heat loss by the human body is the energy expended in warming the air taken into the lungs with each breath. (a) On a cold winter day when the temperature is - 20 ℃, what amount of heat is needed to warm body temperature (37 ℃) the 0.60 L of air exchanged with each breath? Assume that the specific heat of air is 1020 J/kg.K and that 1.0 L of air has a mass of 1.3 x 10-3 kg. (b) How much heat is lost per hour if the respiration rate is 20 breaths per minute?
Chapter 14 Solutions
Applied Physics
Ch. 14.1 - Find each temperature as indicated. 1. TF=77F,...Ch. 14.1 - Find each temperature as indicated. 2. TF=113F,...Ch. 14.1 - Find each temperature as indicated. 3. TF=257F,...Ch. 14.1 - Find each temperature as indicated. 4. TC=15C,...Ch. 14.1 - Find each temperature as indicated. 5. TC=145C,...Ch. 14.1 - Find each temperature as indicated. 6. TC=35C,...Ch. 14.1 - Prob. 7PCh. 14.1 - Prob. 8PCh. 14.1 - Find each temperature as indicated. 9. TC=95C,...Ch. 14.1 - Prob. 10P
Ch. 14.1 - Prob. 11PCh. 14.1 - Prob. 12PCh. 14.1 - Prob. 13PCh. 14.1 - Prob. 14PCh. 14.1 - Prob. 15PCh. 14.1 - Prob. 16PCh. 14.1 - Prob. 17PCh. 14.1 - The melting point of pure iron is 1505C. What...Ch. 14.1 - The melting point of mercury is -38.0F. What...Ch. 14.1 - A welding white heat is approximately 1400C. Find...Ch. 14.1 - The temperature in a crowded room is 85F. What is...Ch. 14.1 - The temperature of an iced tea drink is 5C. What...Ch. 14.1 - Prob. 23PCh. 14.1 - The melting point of ethyl alcohol is -179F. What...Ch. 14.1 - Prob. 25PCh. 14.1 - Prob. 26PCh. 14.1 - Prob. 27PCh. 14.1 - Prob. 28PCh. 14.1 - Prob. 29PCh. 14.1 - Prob. 30PCh. 14.1 - Prob. 31PCh. 14.2 - Find the amount of heat in cal generated by 95 J...Ch. 14.2 - Find the amount of heat in kcal generated by 7510...Ch. 14.2 - Find the amount of work that is equivalent to 1550...Ch. 14.2 - Find the amount of work that is equivalent to 3850...Ch. 14.2 - Find the mechanical work equivalent (in J) of 765...Ch. 14.2 - Find the mechanical work equivalent (in J) of 8550...Ch. 14.2 - Find the heat equivalent (in Btu) of 3.46106 ft lb...Ch. 14.2 - Prob. 8PCh. 14.2 - How much work must a person do to offset eating a...Ch. 14.2 - Prob. 10PCh. 14.2 - A fuel yields 1.15104 cal/g when burned. How many...Ch. 14.2 - A racing fuel produces 1.60104 cal/g when burned....Ch. 14.2 - Prob. 13PCh. 14.2 - A coal sample yields 1 25104 Btu/lb. How many foot...Ch. 14.2 - Prob. 15PCh. 14.2 - Find the amount of heat energy that must be...Ch. 14.2 - What is the mechanical work equivalent in 50,000...Ch. 14.2 - An industrial engine produces 38,000 kcal of heat....Ch. 14.3 - Find the R value of a pane of 0.125-in.-thick...Ch. 14.3 - Find the R value of a brick wall 4.0 in. thick.Ch. 14.3 - Find the R value of 0.50-in -thick sheetrock.Ch. 14.3 - Find the thermal conductivity of a piece of...Ch. 14.3 - Find the R value of 0.50-in.-thick corkboard.Ch. 14.3 - The dimensions of a rectangular building are...Ch. 14.3 - Find the heat flow during 30.0 days through a...Ch. 14.3 - Find the heat flow in 30.0 days through a...Ch. 14.3 - Find the heat flow in 75 s through a steel rod of...Ch. 14.3 - Find the heat flow in 15 min through a...Ch. 14.3 - Find the heat flow in 24 h through a refrigerator...Ch. 14.3 - Find the heat flow in 30 0 days through a freezer...Ch. 14.3 - Find the heat flow in 24 h through a refrigerator...Ch. 14.3 - Find the heat flow in 30 0 days through a freezer...Ch. 14.3 - Find the heat flow through the sides of an...Ch. 14.4 - Find Q for each material. 1. Steel, w=3.00 lb,...Ch. 14.4 - Find Q for each material. 2. Copper, m=155 kg,...Ch. 14.4 - Prob. 3PCh. 14.4 - Prob. 4PCh. 14.4 - Prob. 5PCh. 14.4 - Prob. 6PCh. 14.4 - Prob. 7PCh. 14.4 - Find Q for each material. 8. Brass, m=750 kg,...Ch. 14.4 - Find Q for each material. 9. Steel m=1250 g,...Ch. 14.4 - Prob. 10PCh. 14.4 - Find Q for each material 11. Water, m =800 g,...Ch. 14.4 - Prob. 12PCh. 14.4 - How many Btu of heat must be added to 1200 lb of...Ch. 14.4 - How many Btu of heat are given off by 500 lb of...Ch. 14.4 - How many kcal of heat must be added to 1250 kg of...Ch. 14.4 - How many joules of heat are absorbed by an...Ch. 14.4 - How many joules of heat are required to raise the...Ch. 14.4 - Prob. 18PCh. 14.4 - How many joules of heat are given off when 125 kg...Ch. 14.4 - A 525-kg steam boiler is made of steel and...Ch. 14.4 - Find the initial temperature of a 49.0-N cube of...Ch. 14.4 - Prob. 22PCh. 14.4 - A block of iron with mass 0.400 kg is heated to...Ch. 14.4 - A block of copper is heated from 20.0C to 80.0C....Ch. 14.4 - The cooling system of a truck engine contains 20.0...Ch. 14.5 - A 2.50-lb piece of steel is dropped into 11.0 lb...Ch. 14.5 - Prob. 2PCh. 14.5 - A 250 g piece of tin at 99C is dropped in 100 g of...Ch. 14.5 - How many grams of water at 20C are necessary to...Ch. 14.5 - A 159-lb piece of aluminum at 500F is dropped into...Ch. 14.5 - Prob. 6PCh. 14.5 - If 1250 g of copper at 20.0C is mixed with 500 g...Ch. 14.5 - If 500 g of brass at 200C and 300 g of steel at...Ch. 14.5 - The following data were collected in the...Ch. 14.5 - The following data were collected in the...Ch. 14.5 - Prob. 11PCh. 14.5 - How much heat must be absorbed by its surroundings...Ch. 14.5 - How much water at 0C would be needed to cool the...Ch. 14.5 - Prob. 14PCh. 14.6 - Find the increase in length of copper tubing 200.0...Ch. 14.6 - Find the increase in length of a zinc rod 50.0 m...Ch. 14.6 - Find the increase in length of 300.00 m of copper...Ch. 14.6 - A steel pipe 8.25 m long is installed at 45C. Find...Ch. 14.6 - A steel tape measures 200.00 m at 15C. What is its...Ch. 14.6 - A brass rod 1.020 m long expands 3.0 mm when it is...Ch. 14.6 - The road bed on a bridge 500.0 ft long is made of...Ch. 14.6 - An aluminum plug has a diameter of 10.003 cm at...Ch. 14.6 - The diameter of a steel drill at 45F is 0.750 in....Ch. 14.6 - A brass ball with diameter 12.000 cm is 0.011 cm...Ch. 14.6 - A brass cylinder has a cross-sectional area of 482...Ch. 14.6 - The volume of the cylinder in Problem 11 is 4820...Ch. 14.6 - An aluminum pipe has a cross-sectional area of...Ch. 14.6 - A steel pipe has a cross-sectional area of 127.20...Ch. 14.6 - A glass plug has a volume of 60.00 cm3 at 12C....Ch. 14.6 - The diameter of a hole drilled through brass at...Ch. 14.6 - Prob. 17PCh. 14.6 - Steel beams 60.000 ft long are placed in a highway...Ch. 14.6 - The spaces between 13.00-m steel rails are 0.711...Ch. 14.6 - A section of concrete dam is a rectangular solid...Ch. 14.6 - A glass ball has a radius of 12.000 cm at 6.0C....Ch. 14.6 - Find the final height of a concrete column that is...Ch. 14.6 - What is the final volume of a glass right circular...Ch. 14.6 - A metal bar at 21.0C is 2.6000 m long. If the bar...Ch. 14.7 - A quantity of carbon tetrachloride occupies 625 L...Ch. 14.7 - Some mercury occupies 157 in3 at -30F. What is its...Ch. 14.7 - Some petroleum occupies 11.7 m3 at -17C. Find its...Ch. 14.7 - Find the increase in volume of 35 L of acetone...Ch. 14.7 - Some water at 180F occupies 3780 ft 3 What is its...Ch. 14.7 - A 1200-L tank of petroleum is completely filled at...Ch. 14.7 - Find the increase in volume of 215 cm3 of mercury...Ch. 14.7 - Find the decrease in volume of 2000 ft 3 of...Ch. 14.7 - Prob. 9PCh. 14.7 - Prob. 10PCh. 14.7 - What was the temperature of 180 mL of acetone...Ch. 14.7 - What is the increase in volume of 1200 L of...Ch. 14.7 - Five hundred litres of petroleum at 4.0C is heated...Ch. 14.8 - Prob. 1PCh. 14.8 - Prob. 2PCh. 14.8 - Prob. 3PCh. 14.8 - Prob. 4PCh. 14.8 - How many calories of heat are required to melt 320...Ch. 14.8 - How many calories of heat are given off when 3250...Ch. 14.8 - How many joules of heat are required to melt 20.0...Ch. 14.8 - How many kilocalories of heat are required to melt...Ch. 14.8 - How many joules of heat need to be removed to...Ch. 14.8 - How many litres of water at 100C are vaporized by...Ch. 14.8 - Prob. 11PCh. 14.8 - How many Btu of heat are released when 20.0 lb of...Ch. 14.8 - How many Btu of heat are required to change 9.00...Ch. 14.8 - How many calories of heat are released when 200 g...Ch. 14.8 - How many kilocalories of heat are required to melt...Ch. 14.8 - How many joules of heat are required to melt 15.0...Ch. 14.8 - Prob. 17PCh. 14.8 - How many kcal of heat are needed to vaporize 5.00...Ch. 14.8 - Prob. 19PCh. 14.8 - Prob. 20PCh. 14.8 - How many kilocalories of heat are needed to change...Ch. 14.8 - How many joules of heat does 620 g of mercury...Ch. 14 - Which of the following are methods of heat...Ch. 14 - Which of the following are good conductors of...Ch. 14 - The amount that a solid expands when heated...Ch. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - In your own words, describe the method of...Ch. 14 - Prob. 8RQCh. 14 - Which other temperature scale is closely related...Ch. 14 - Which other temperature scale is closely related...Ch. 14 - Distinguish between the Celsius and Fahrenheit...Ch. 14 - Distinguish between heat and temperature.Ch. 14 - Give three examples of the conversion of heat into...Ch. 14 - Give three examples of the conversion of work into...Ch. 14 - Should you wear light- or dark-colored clothing on...Ch. 14 - Does the area of a hole cut out of a metal block...Ch. 14 - Which would cool a hot object better: 10 kg of...Ch. 14 - Steam can cause much more severe burns than hot...Ch. 14 - Why are ice cubes often observed to have a slight...Ch. 14 - In your own words, describe each method of heat...Ch. 14 - Describe why automotive cooling systems are...Ch. 14 - Change 344 K to degrees Celsius.Ch. 14 - Change 24C to Kelvin.Ch. 14 - Prob. 3RPCh. 14 - Change 635F to degrees Celsius.Ch. 14 - Prob. 5RPCh. 14 - Find the amount of heat in kcal generated by 6530...Ch. 14 - Find the amount of work equivalent to 435 Btu.Ch. 14 - Find the heat flow during 4.10 h through a glass...Ch. 14 - Find the heat flow in 25.0 days through a freezer...Ch. 14 - How many Btu of heat must be added to 835 lb of...Ch. 14 - How many kcal of heat must be added to 148 kg of...Ch. 14 - A 161-kg steam boiler is made of steel and...Ch. 14 - A 3.80-lb piece of copper is dropped into 8.35 lb...Ch. 14 - Prob. 14RPCh. 14 - Prob. 15RPCh. 14 - The length of a steel rod at 5C is 12.500 m. What...Ch. 14 - The diameter of a hole drilled through aluminum at...Ch. 14 - A steel ball has a radius of 1.54 cm at 35C. Find...Ch. 14 - Find the increase in volume of 44.8 L of acetone...Ch. 14 - What is the decrease in volume of 3450 ft3 of...Ch. 14 - How many kcal of heat are required to vaporize...Ch. 14 - How many Btu of heat are required to melt 8.35 lb...Ch. 14 - How many kcal of heat must be withdrawn from 4.56...Ch. 14 - How many joules of heat are required to change 336...Ch. 14 - A polystyrene foam cover prevents an ice-water...Ch. 14 - Every winter a local recreation department fills a...Ch. 14 - Prob. 3ACCh. 14 - Pedro, a contractor, is trying to choose between...Ch. 14 - In anticipation of winter snowstorms, Jamal fills...
Additional Science Textbook Solutions
Find more solutions based on key concepts
A square wire loop of side l and resistance R is pulled with constant speed v from a region of no magnetic fiel...
Essential University Physics (3rd Edition)
Calculate the net work output of a heat engine following path ABCDA as shown below.
University Physics Volume 2
The final temperature of the ideal gas in the container.
Physics (5th Edition)
1. A positively charged glass rod is brought close to a neutral sphere that is supported on a nonconducting pla...
College Physics (10th Edition)
The point where the electric field is greatest.
College Physics: A Strategic Approach (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- An aluminum rod 0.500 m in length and with a cross-sectional area of 2.50 cm2 is inserted into a thermally insulated vessel containing liquid helium at 4.20 K. The rod is initially at 300 K. (a) If one-half of the rod is inserted into the helium, how many liters of helium boil off by the time the inserted half cools to 4.20 K? Assume the upper half does not yet cool. (b) If the circular surface of the upper end of the rod is maintained at 300 K, what is the approximate boil-off rate of liquid helium in liters per second after the lower half has reached 4.20 K? (Aluminum has thermal conductivity of 3 100 W/m K at 4.20 K; ignore its temperature variation. The density of liquid helium is 125 kg/m3.)arrow_forwardFor a temperature increase of 10 at constant volume, what is the heat absorbed by (a) 3.0 mol of a dilute monatomic gas; (b) 0.50 mol of a dilute diatomic gas; and (c) 15 mol of a dilute polyatomic gas?arrow_forwardBeryllium has roughly one-half the specific heat of water (H2O). Rank the quantities of energy input required to produce the following changes from the largest to the smallest. In your ranking, note any cases of equality, (a) raising the temperature of 1 kg of H2O from 20C to 26C (b) raising the temperature of 2 kg of H2O from 20C to 23C (c) raising the temperature of 2 kg of H2O from 1C to 4C (d) raising the temperature of 2 kg of beryllium from 1C to 2C (e) raising the temperature of 2 kg of H2O from -1C to 2Carrow_forward
- Equal masses of substance A at 10.0C and substance B at 90.0C are placed in a well-insulated container of negligible mass and allowed to come to equilibrium. If the equilibrium temperature is 75.0Q which substance has the larger specific heat? (a) substance A (b) substance B (c) The specific heats are identical. (d) The answer depends on the exact initial temperatures. (e) More information is required.arrow_forwardA 100-g piece of copper, initially at 95.0C, is dropped into 200 g of water contained in a 280-g aluminum can; the water and can are initially at 15.0C. What is the final temperature of the system? (Specific heats of copper and aluminum are 0.092 and 0.215 cal/g C, respectively.) (a) 16C (b) 18C (c) 24C (d) 26C (e) none of those answersarrow_forwardIn 1993, the U.S. government instituted a requirement that all room air conditioners sold in the United States must have an energy efficiency ratio (EER) of 10 or higher. The EER is defined as the ratio of the cooling capacity of the air conditioner, measured in British thermal units per hour, or Btu/h, to its electrical power requirement in watts. (a) Convert the EER of 10.0 to dimensionless form, using the conversion 1 Btu = 1 055 J. (b) What is the appropriate name for this dimensionless quantity? (c) In the 1970s, it was common to find room air conditioners with EERs of 5 or lower. State how the operating costs compare for 10 000-Btu/h air conditioners with EERs of 5.00 and 10.0. Assume each air conditioner operates for 1 500 h during the summer in a city where electricity costs 17.0 per kWh.arrow_forward
- Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 120 km long, 35 km wide, and 230 m thick. (a) How much heat would be required to melt this iceberg (assumed to be at 0°C) into liquid water at 0 °C? The density of ice is 917 kg/m³. (b) The annual energy consumption by the United States is about 1.10 x 1020 J. If this energy were delivered to the iceberg every year, how many years would it take before the ice completely melted?arrow_forwardA person inhales and exhales 2.00 L of 37.0C air, evaporating 4.00 X 10-2 g of water from the lungs and breathing passages with each breath. (a) How much heat transfer occurs due to evaporation in each breath? (b) What is the rate of heat transfer in watts if the person is breathing at a moderate rate of 18.0 breaths per minute? (c) If the inhaled air had a temperature of 20.0C, what is the rate of heat transfer for warming the air? (d) Discuss the total rate of heat transfer as it relates to typical metabolic rates. Will this breathing be a major form of heat transfer for this person?arrow_forwardThe concrete slab of a basement is 11m long, 8 m wide and 0.2 m thick. During the winter, temperatures are nominally 17°C and 10°C at the top and bottom respectively. If the concrete has thermal conductivity of 1.4 W/m K, what is the rate of heat loss through the slab? If the basement is heated by a gas furnace operating at an efficiency of 90% using natural gas priced at Cg = Php 1.00/MJ, what is the daily cost of heat loss?arrow_forward
- (a) Two 33 g ice cubes are dropped into 180 g of water in a thermally insulated container. If the water is initially at 27°C, and the ice comes directly from a freezer at -21°C, what is the final temperature at thermal equilibrium? (b) What is the final temperature if only one ice cube is used? The specific heat of water is 4186 J/kg-K. The specific heat of ice is 2220 J/kg•K. The latent heat of fusion is 333 kJ/kg. (a) Number Units (b) Number Unitsarrow_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 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 intermediate results to at least four-digit accuracy to minimize roundoff error. m3 137.00 5.00 m 00 8.00 m 10.0 marrow_forwardA 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 10arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Heat Transfer: Crash Course Engineering #14; Author: CrashCourse;https://www.youtube.com/watch?v=YK7G6l_K6sA;License: Standard YouTube License, CC-BY