One end of an insulated metal rod is maintained at 100°C and the other end is maintained at 0.00° C by an ice-water mixture. The rod has a length of 60.0 cm and a cross-sectional area of 1.05 cm². The heat conducted by the rod melts a mass of 5.95 g of ice in a time of 15.0 min. Part A Find the thermal conductivity k of the metal. Express your answer in watts per meter-kelvin. 195| ΑΣΦ k= Submit Request Answer ? W/(m. K)

One end of an insulated metal rod is maintained at 100°C and the other end is maintained at 0.00° C by an ice-water mixture. The rod has a length of 60.0 cm and a cross-sectional area of 1.05 cm². The heat conducted by the rod melts a mass of 5.95 g of ice in a time of 15.0 min. Part A Find the thermal conductivity k of the metal. Express your answer in watts per meter-kelvin. 195| ΑΣΦ k= Submit Request Answer ? W/(m. K)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Just about everyone at one time or another has been burned by hot water or steam. This problem compares the heat input to your skin from steam as opposed to hot water at the same temperature. Part C How much heat Assume that water and steam, initially at 100° C, are cooled down to skin temperature, 34° C, when they come in contact with your skin. Assume that the steam condenses extremely fast. The heat capacity of liquid water is c = Q2 is transferred to the skin by 25.0 g of steam onto the skin? The heat of 4190 J/(kg · K). vaporization for steam is L = 2.256 × 10® J/kg. Express the heat transferred, in joules, to three significant figures. • View Available Hint(s) ΑΣφ Q2 Submit Previous Answers
Part A A 12m x 13m house is built on a 12 cm -thick concrete slab. What is the heat-loss rate through the slab if the ground temperature is 4 °C while the interior of the house is 22 °C? Express your answer to two significant figures and include the appropriate units. O Value Units Submit Request Answer
The basal metabolic rate is the rate at which energy is produced in the body when a person is at rest. A 75 kgkg (165 lblb) person of height 1.85 mm (6.07 ftft) would have a body surface area of approximately 2.00 m2m2. Part A What is the net amount of heat this person could radiate per second into a room at 17.0 ∘C∘C (about 62.6 ∘F∘F) if his skin's surface temperature is 31.0 ∘C∘C? (At such temperatures, nearly all the heat is infrared radiation, for which the body's emissivity is 1.0, regardless of the amount of pigment.) Express your answer with the appropriate units. HnetHnet = nothingnothing SubmitRequest Answer Part B Normally, 80%% of the energy produced by metabolism goes into heat, while the rest goes into things like pumping blood and repairing cells. Also normally, a person at rest can get rid of this excess heat just through radiation. Use your answer to part A to find this person's basal metabolic rate…
The evaporation of sweat is an important mechanism for temperature control in some warm-blooded animals. Part A What mass of water must evaporate from the skin of a 67.5 kg man to cool his body 1.25 °C? The heat of vaporization of water at body temperature (37.0 °C) is 2.42 x 106 J/kg. The specific heat of a typical human body is 3480 J/(kg-K). Express your answer in kilograms to three significant figures. m = Submit Part B | ΓΑΣΦ V= Request Answer Submit What volume of water must the man drink replenish the evaporated water? Compare this result with the volume of a soft-drink can, which is 355 cm³ Express your answer in cubic centimeters to three significant figures. VI ΓΑΣΦ ? Request Answer kg ? cm³
One end of an insulated metal rod is maintained at 100°C and the other end is maintained at 0.00°C by an ice-water mixture. The rod has a length of 65.0 cm and a cross-sectional area of 1.30 cm². The heat conducted by the rod melts a mass of 9.05 g of ice in a time of 15.0 min. Part A Find the thermal conductivity k of the metal. Express your answer in watts per meter-kelvin. V ΑΣΦ k= Submit Provide Feedback Request Answer ? W/(m. K)
One end of an insulated metal rod is maintained at 100°C and the other end is maintained at 0.00° C by an ice-water mixture. The rod has a length of 70.0 cm and a cross- sectional area of 1.45 cm². The heat conducted by the rod melts a mass of 8.00 g of ice in a time of 10.0 min. Part A Find the thermal conductivity k of the metal. Express your answer in watts per meter-kelvin. —| ΑΣΦ k = Submit Previous Answers Request Answer Provide Feedback ? X Incorrect; Try Again; 5 attempts remaining W/(m. K)
D How many joules of heat are required to melt 8.5 g of copper at a temperature of 1083°C? Use the values found in Table 15 from Appendix C of your text. Add your answer M
Cons The value of specific heat for copper is 390 J/kg · C°, for aluminun is 900 J/kg · C°, and for water is 4186 J/kg · C°. Part A What will be the equilibrium temperature when a 265 g block of copper at 255 °C is placed in a 145 g aluminum calorimeter cup containing 875 g of water at 15.0 °C? Express your answer using three significant figures. να ΑΣφ T = °C %3D
The height of the Eiffel tower is 324 m, and let's assume it's made completely of steel, which has a thermal coefficient of 1.20 × 10-5/°C. a. How much taller, in meters, does the Eiffel Tower become at the end of a day when the temperature has increased by 17.5°C?
A 0.0545 kg chunk of an unknown metal that has been in boiling water for several minutes is quickly dropped into an insulating Styrofoam beaker that contains 0.462 kg of water at room temperature (20.0° C). After waiting for a few minutes, you observe that the water's temperature has reached a constant value of 22.0° C. Part A Assuming that the Styrofoam absorbs a negligibly small amount of heat and that no heat was lost to the surroundings, what is the specific heat of the metal? Express your answer in joules per kilogram-kelvin to three significant figures. ΑΣφ J/(kg · K) C = Submit Request Answer Part B Use the table below to identify the metal. Specific heat (c) Material J/(kg K) cal/(g K) Solids Lead 0.13 x 103 0.031 Mercury 0.14 × 103 0.033 Silver 0.23 × 103 0.056 Copper 0.39 × 10³ 0.093 Iron 0.47 x 103 0.112 Marble (CACO3) 0.88 × 10³ 0.21 Salt 0.88 × 103 0.21 Aluminum 0.91 × 103 0.217 Beryllium 1 97 x 103 0.471
For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Expansion of mercury. Part A An underground tank with a capacity of 1850 L (1.85 m³ ) is completely filled with ethanol that has an initial temperature of 19.3°C. After the ethanol has cooled off to the temperature of the tank and ground, which is 10.1° C, how much air space will there be above the ethanol in the tank? (Assume the coefficient of volume expansion for ethanol is 110 x 10¬º (K)-' and that the volume of the tank doesn't change appreciably.) Express your answer in liters. Πν ΑΣφ L Vair Submit Request Answer
A diving bell is a 5.0 m-tall cylinder closed at the upper end but open at the lower end. The temperature of the air in the bell is 30 °C. The bell is lowered into the ocean until its lower end is 100 m deep. The temperature at that depth is 10°C. Part A How high does the water rise in the bell after enough time has passed for the air to reach thermal equilibrium? Express your answer with the appropriate units. h = Submit Part B μA Value Request Answer Units ? A compressed-air hose from the surface is used to expel all the water from the bell. What minimum air pressure is needed to do this? Express your answer with the appropriate units.