Physics for Scientists and Engineers with Modern Physics
4th Edition
ISBN: 9780136139225
Author: Douglas C. Giancoli
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 19, Problem 73GP
To determine
The temperature rise of the body.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A food product containing 80% moisture content is being frozen. Estimate the specific heat of the product at -6 ° C when 80% of the water is frozen. The specific heat of the dry product is 2 kJ / (kg ° C). it is assumed that the specific heat of water at -10 ° C is the same as the specific heat of water at 0 ° C, and the specific heat of ice follows the function Cp ice = 0.0062 Freezing point + 2.0649.
Cp of frozen product = .... kJ / kg ° C.
One mole of water vapor at 346 K cools
to 280 K. The heat given off by the cooling
water vapor is absorbed by 10 mol of an ideal
gas, and this heat absorption causes the gas to
expand at a constant temperature of 273 K.
If the final volume of the ideal gas is 24 L,
determine its initial volume. The specific heat
of water is 4186 J/kg °C and the latent heat
of vaporization is 2.26 x 106 J/kg.
Answer in units of 1.
Radioactive decay of elements in the earth’s interior results in a mean heat flux through the Earth’s surfaceof 5×10−2Wm−2. What is the flux expressed as a fraction of the energy flux due to thermal re-radiation of absorbed solar energy? If radioactive decay were the only heat source for the Earth, what would the Earth’s temperature be?
Chapter 19 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 19.2 - Return to the Chapter-Opening Question, page 496,...Ch. 19.5 - Prob. 1BECh. 19.5 - How much more ice at 10C would be needed in...Ch. 19.6 - What would be the internal energy change in...Ch. 19.7 - Is the work done by the gas in process ADB of Fig....Ch. 19.7 - In Example 1910, if the heat lost from the gas in...Ch. 19.10 - Fanning yourself on a hot day cools you by (a)...Ch. 19 - What happens to the work done on a jar of orange...Ch. 19 - Prob. 2QCh. 19 - Prob. 3Q
Ch. 19 - Prob. 4QCh. 19 - Prob. 5QCh. 19 - Why does water in a canteen stay cooler if the...Ch. 19 - Explain why burns caused by steam at 100C on the...Ch. 19 - Prob. 8QCh. 19 - Will potatoes cook faster if the water is boiling...Ch. 19 - Prob. 10QCh. 19 - Prob. 11QCh. 19 - Use the conservation of energy to explain why the...Ch. 19 - In an isothermal process, 3700 J of work is done...Ch. 19 - Explorers on failed Arctic expeditions have...Ch. 19 - Why is wet sand at the beach cooler to walk on...Ch. 19 - When hot-air furnaces are used to heat a house,...Ch. 19 - Is it possible for the temperature of a system to...Ch. 19 - Discuss how the first law of thermodynamics can...Ch. 19 - Explain in words why CP is greater than CV.Ch. 19 - Prob. 20QCh. 19 - An ideal monatomic gas is allowed to expand slowly...Ch. 19 - Ceiling fans are sometimes reversible, so that...Ch. 19 - Goose down sleeping bags and parkas are often...Ch. 19 - Microprocessor chips nowadays have a heat sink...Ch. 19 - Sea breezes are often encountered on sunny days at...Ch. 19 - The Earth cools off at night much more quickly...Ch. 19 - Explain why air-temperature readings are always...Ch. 19 - A premature baby in an incubator can be...Ch. 19 - Prob. 29QCh. 19 - A 22C day is warm, while a swimming pool at 22C...Ch. 19 - Prob. 32QCh. 19 - Prob. 33QCh. 19 - Prob. 34QCh. 19 - Prob. 35QCh. 19 - An emergency blanket is a thin shiny...Ch. 19 - Explain why cities situated by the ocean tend to...Ch. 19 - (I) To what temperature will 8700 J of heat raise...Ch. 19 - Prob. 2PCh. 19 - Prob. 3PCh. 19 - (II) A British thermal unit (Btu) is a unit of...Ch. 19 - Prob. 5PCh. 19 - Prob. 6PCh. 19 - (I) An automobile cooling system holds 18 L of...Ch. 19 - Prob. 8PCh. 19 - (II) (a) How much energy is required to bring a...Ch. 19 - Prob. 10PCh. 19 - Prob. 11PCh. 19 - (II) A hot iron horseshoe (mass = 0.40kg), just...Ch. 19 - (II) A 31.5-g glass thermometer reads 23.6C before...Ch. 19 - Prob. 14PCh. 19 - (II) When a 290-g piece of iron at 180C is placed...Ch. 19 - (II) The heat capacity. C, of an object is defined...Ch. 19 - (II) The 1.20-kg head of a hammer has a speed of...Ch. 19 - (I) How much heat is needed to melt 26.50kg of...Ch. 19 - (I) During exercise, a person may give off 180...Ch. 19 - (II) A 35g ice cube at its melting point is...Ch. 19 - (II) High-altitude mountain climbers do not eat...Ch. 19 - (II) An iron boiler of mass 180 kg contains 730kg...Ch. 19 - (II) In a hot days race, a bicyclist consumes 8.0...Ch. 19 - (II) The specific heat of mercury is 138 J/kg C....Ch. 19 - Prob. 25PCh. 19 - (II) A 58-kg ice-skater moving at 7.5 m/s glides...Ch. 19 - (I) Sketch a PV diagram of the following process:...Ch. 19 - (I) A gas is enclosed in a cylinder fitted with a...Ch. 19 - (II) The pressure in an ideal gas is cut in half...Ch. 19 - (II) A 1.0-L volume of air initially at 3.5 atm of...Ch. 19 - (II) Consider the following two-step process. Heat...Ch. 19 - (II) The PV diagram in Fig. 1931 shows two...Ch. 19 - (II) Suppose 2.60 mol of an ideal gas of volume V1...Ch. 19 - (II) In an engine, an almost ideal gas is...Ch. 19 - (II) One and one-half moles of an ideal monatomic...Ch. 19 - (II) Determine (a) the work done and (b) the...Ch. 19 - (II) How much work is done by a pump to slowly...Ch. 19 - (II) When a gas is taken from a to c along the...Ch. 19 - (III) In the process of taking a gas from state a...Ch. 19 - (III) Suppose a gas is taken clockwise around the...Ch. 19 - (III) Determine the work done by 1.00 mol of a van...Ch. 19 - (I) What is the internal energy of 4.50 mol of an...Ch. 19 - Prob. 43PCh. 19 - Prob. 44PCh. 19 - Prob. 45PCh. 19 - What gas is it? (II) Show that the work done by n...Ch. 19 - (II) An audience of 1800 fills a concert hall of...Ch. 19 - Prob. 48PCh. 19 - Prob. 49PCh. 19 - (III) A 1.00-mol sample of an ideal diatomic gas...Ch. 19 - (I) A 1.00-mol sample of an ideal diatomic gas,...Ch. 19 - (II) Show, using Eqs. 196 and 1915, that the work...Ch. 19 - (III) A 3.65-mol sample of an ideal diatomic gas...Ch. 19 - (II) An ideal monatomic gas, consisting of 2.8 mol...Ch. 19 - (III) A 1.00-mol sample of an ideal monatomic gas,...Ch. 19 - (III) Consider a parcel of air moving to a...Ch. 19 - Prob. 57PCh. 19 - (I) One end of a 45-cm-long copper rod with a...Ch. 19 - (II) How long does it take the Sun to melt a block...Ch. 19 - (II) Heat conduction to skin. Suppose 150 W of...Ch. 19 - (II) A ceramic teapot ( = 0.70) and a shiny one (...Ch. 19 - (II) A copper rod and an aluminum rod of the same...Ch. 19 - Prob. 63PCh. 19 - Prob. 64PCh. 19 - (III) A house thermostat is normally set to 22C,...Ch. 19 - (III) Approximately how long should it take 9.5 kg...Ch. 19 - (III) A cylindrical pipe has inner radius R1 and...Ch. 19 - (III) Suppose the insulating qualities of the wall...Ch. 19 - Prob. 69GPCh. 19 - (a) Find the total power radiated into space by...Ch. 19 - Prob. 71GPCh. 19 - A mountain climber wears a goose-down jacket 3.5...Ch. 19 - Prob. 73GPCh. 19 - Estimate the rate at which heat can he conducted...Ch. 19 - A marathon runner has an average metabolism rate...Ch. 19 - A house has well-insulated walls 19.5 cm thick...Ch. 19 - In a typical game of squash (Fig. 19-36), two...Ch. 19 - A bicycle pump is a cylinder 22 cm long and 3.0 cm...Ch. 19 - Prob. 79GPCh. 19 - The temperature within the Earths crust increases...Ch. 19 - An ice sheet forms on a lake. The air above the...Ch. 19 - An iron meteorite melts when it enters the Earths...Ch. 19 - A scuba diver releases a 3.60-cm-diameter...Ch. 19 - A reciprocating compressor is a device that...Ch. 19 - The temperature of the glass surface of a 75-W...Ch. 19 - Suppose 3.0 mol of neon (an ideal monatomic gas)...Ch. 19 - At very low temperatures, the molar specific heat...Ch. 19 - A diesel engine accomplishes ignition without a...Ch. 19 - When 6.30 105 J of heat is added to a gas...Ch. 19 - In a cold environment, a person can lose heat by...Ch. 19 - Prob. 91GP
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
- In 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_forwardAt 25.0 m below the surface of the sea, where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00 cm3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?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_forward
- One way to cool a gas is to let it expand. When a certain gas under a pressure of 5.00 106 Ha at 25.0C is allowed to expand to 3.00 times its original volume, its final pressure is 1.07 106 Pa. (a) What is the initial temperature of the gas in Kelvin? (b) What is the final temperature of the system? (See Section 10.4.)arrow_forwardConsider the latent heat of fusion and the latent heat of vaporization for H2O, 3.33 105 J/kg and 2.256 106 J/kg, respectively. How much heat is needed to a. melt 2.00 kg of ice and b. vaporize 2.00 kg of water? Assume the temperatures of the ice and steam are at the melting point and vaporization point, respectively. (a). UsingEq21.9, Q = mLF = (2.00 kg) (3.33l05 J/kg) = 6.66105 J (b).UsingEq21.10. Q = mLV = (2.00kg) (2.256106 J/kg) = 14.51106 Jarrow_forwardThe thermal conductivities of human tissues vary greatly. Fat and skin have conductivities of about 0.20 W/m K and 0.020 W/m K, respectively, while other tissues inside the body have conductivities of about 0.50 W/m K. Assume that between the core region of the body and the skin sin face lies a skin layer of 1.0 mm, fat layer of 0.50 cm, and 3.2 cm of other tissues. (a) Find the R-factor for each of these layers, and the equivalent R-factor for all layers taken together, retaining two digits. (b) Find the rate of energy loss when the core temperature is 37C and the exterior temperature is 0C. Assume that both a protective layer of clothing and an insulating layer of unmoving air a absent, and a body area of 2.0 m2.arrow_forward
- An ideal gas initially at 300 K undergoes an isobaric expansion at 2.50 kPa. If the volume increases from 1.00 m3 to 3.00 m3 and 12.5 kJ is transferred to the gas by heat, what are (a) the change in its internal energy and (b) its final temperature?arrow_forwardStars A and B have the same temperature, but star A has twice the radius of star B. (a) What is the ratio of star As power output to star Bs output due to electromagnetic radiation? The emissivity of both stars can be assumed to be 1. (b) Repeat the question if the stars have the same radius, but star A has twice the absolute temperature of star B. (c) Whats the ratio if star A has both twice the radius and twice the absolute temperature of star B?arrow_forwardCompare the SI units of specific heat and latent heat and explain any differences.arrow_forward
- A solar panel receives energy from the Sun at a rate of 5.0 kW.Thermal energy is transferred from the solar panel to water with an efficiency of 20%.Coldwater of mass 15 kg enters the solar panel every hour.The specific heat capacity of water is 4200 J/(kg °C).Calculate the temperature increase of the water.arrow_forwardThe concrete slab of a basement is 11 m long and 8 m wide, and 0.20 m thick. During the winter, temperatures are nominally 17°C and 10°C at the top and bottom surfaces, respectively. If the concrete has a thermal conductivity of 1.4 W/mK, what is the rate of heat loss through the slab? If the basement is heated by a gas furnace operation at an efficiency of 90%, and natural gas is priced at $0.02. MJ, what is the daily cost of the heat loss. Answer: QLOSS = 4.312 kW, COST = $8.28/dayarrow_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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning