College Physics

14.Freeze-dried foods have been dehydrated in a vacuum. During the process, the food freezes and must be heated to facilitate de ...

20.One way to make a fireplace more energy efficient is to have an external air supply for the combustion of its fuel. Another i ...

Problems & Exercises 14.2 Temperature Change and Heat Capacity 1.On a hot day, the temperature of an 80,000-L swimming pool ...

(a) What is the mass of this iceberg, given that the density of ice is 917 kg/m^3? (b) How much heat transfer (in joules) is nee ...

Figure 14.33Walrus on ice. (credit: Captain Budd Christman, NOAA Corps) 38.Compare the rate of heat conduction through a 13.0-cm ...

54.A glass coffee pot has a circular bottom with a 9.00-cm diameter in contact with a heating element that keeps the coffee warm ...

of the meteor is more likely to be deposited in the ocean and the likely effects of that energy. Integrated Concepts Frozen wa ...

506 CHAPTER 14 | HEAT AND HEAT TRANSFER METHODS This content is available for free at http://cnx.org/content/col11406/1.7 ...

15 THERMODYNAMICS Figure 15.1A steam engine uses heat transfer to do work. Tourists regularly ride this narrow-gauge steam engin ...

Introduction to Thermodynamics Heat transfer is energy in transit, and it can be used to do work. It can also be converted to an ...

Figure 15.3The first law of thermodynamics is the conservation-of-energy principle stated for a system where heat and work are t ...

Example 15.1 Calculating Change in Internal Energy: The Same Change inUis Produced by Two Different Processes (a) Suppose there ...

Figure 15.4Two different processes produce the same change in a system. (a) A total of 15.00 J of heat transfer occurs into the ...

work done on the body and heat transfer into it cannot be converted to body fat. Otherwise, we could skip lunch by sunning ourse ...

Figure 15.7Schematic representation of a heat engine, governed, of course, by the first law of thermodynamics. It is impossible ...

PVDiagrams and their Relationship to Work Done on or by a Gas A process by which a gas does work on a piston at constant pressur ...

Figure 15.10A graph of pressure versus volume for a constant-pressure, or isobaric, process, such as the one shown inFigure 15.9 ...

Figure 15.12(a) The work done in going from A to C depends on path. The work is greater for the path ABC than for the path ADC, ...

WCD = PCDΔVCD (15.15) = (2.00× 105 N/m^2 )(–5.00× 10 –4m^3 ) = –100 J. Again, since the path DA is isochoric,ΔVDA= 0, and soWDA= ...

Figure 15.13(a) The upper curve is an isothermal process (ΔT= 0), whereas the lower curve is an adiabatic process (Q= 0). Both s ...