*17. ssm mmh In an aluminum pot, 0.15 kg of water at 100 °C boils awayin four minutes. The bottom of the pot is 3.1 X 10-3 m thick and has asurface area of 0.015 m². To prevent the water from boiling too rapidly, astainless steel plate has been placed between the pot and the heating ele-ment. The plate is 1.4 × 10-³ m thick, and its area matches that of the pot.Assuming that heat is conducted into the water only through the bottomof the pot, find the temperature at (a) the aluminum-steel interface and(b) the steel surface in contact with the heating element.

Mass of water in the aluminum pot (m)=0.15 kg Temperature of water in the pot (T)=100 oC Time to…

Answered: *17. ssm mmh In an aluminum pot, 0.15…

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)...

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35. ssm Suppose that the steel gas tank in your car is completely filled when the temperature is 17 °C. How many gallons will spill out of the twenty-gallon tank when the temperature rises to 35 °C?
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Q2/ air at 25 °C and 1 atm flows over flat plate at 20 m/s. the plate is 75 mm long and it is maintained at 55 °C. Assume unit depth in z-direction, find the heat transfer rate from the plate. p31.128 kg/m^3 ,k=0.02723 W/(m.K) p=1.906x10^(-5) * kg/(m.s) ,cp=1.007 kJ/(kg.°C) إضاقة علف
By how much does the length of a 62 cm aluminium bar increase when the bar is heated from 5°C to 80°C? Give your answer correct to two decimal places. Coefficient of linear expansion of Al = 23 x 10-6/°C. The length increases by cm.
2 kg of ice at 0°C are placed in a closed glass beaker (k=0.80 W/m-C). The closed beaker is then placed in a 30°C room. The surface area of the beaker is 5x10-3 m²; and its walls are 0.005m 5. thick. How much heat is required to melt the ice? How long does it take the ice to melt?
Week 4 #20 A stainless steel saucepan, with a base that is made of 0.180-cm-thick steel (κ = 46.0 W/(m·K)) fused to a 0.150 cm thickness of copper (κ = 401 W/(m·K)), sits on a ceramic heating element at 220°C. The diameter of the pan is 18.0 cm, and it contains boiling water at 100.00°C. If the copper-clad bottom is touching the heat source, at what rate will the water evaporate from the pan? Latent heat of vaporization (Lv) for water is 2256 J/g. Enter your answer in three decimal points. _____g/s
A copper rod with a mass of 2.45 kg and length 45.0 cm is initially at a temperature of 35.0° C. It is placed in a 5.82 kg water bath at an initial temperature of 15.0° C. What is the change in length of the rod?
A chunk of metal has a mass of 600g and has been in boiling water for several minutes. It is quickly dropped into an insulating Styrofoam beaker containing 1.20 kg of water at room temperature (20.0°C). After waiting few minutes, you observe that the water's temperature has reached a constant value of 23.0 °C. The specific heat of water is 4190 J/(kgK). 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? b) If the heat absorbed by the Styrofoam actually is not negligible, what would be the specific heat of the metal? A)Greater than the one calculated in part (a). B)Smaller than the one calculated in part (a). C)Same as the one calculated in part (a).
87. ssm Liquid nitrogen boils at a chilly – 195.8 °C when the pressure is one atmosphere. A silver coin of mass 1.5 × 10¯² kg and temperature 25 °C is dropped into the boiling liquid. What mass of nitrogen boils off as the coin cools to – 195.8 °C?
*15. GO A pot of water is boiling under one atmosphere of pressure. As- sume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m = 0.45 kg. The radius of the pot bottom is R = 6.5 cm, and the thickness is L = 2.0 mm. What is the temperature Tg of the heating element in contact with the pot?
How much heat is conducted in one hour through an iron plate 2.0 cm thick and 100 cm2 in area, the temperature of the two sides being kept at 0 and 20°C? COMPLETE FBD SOLUTION AND REQUIREMENTS PS. THIS IS A HEAT TRANSFER PROBLEM
When heating water for cooking food, it is common to use an electric or natural-gas cooktop. A metal pot with radius r=0.11m is filled with water to a depth of h=0.16m and heated on such a cooktop. The water is initially at a temperature of T0=25∘C. a. Enter an expression for the amount of heat required to raise the temperature of the water to its boiling point of Tv=100∘C in terms of r, h, T0, Tv, ρ and c. b. Calculate the amount of heat, in joules, required to raise the temperature of the water to its boiling point. Water has a density of ρ=1.000×103kg/m3 and a specific heat of c=4.186×103J/(kg⋅∘C) c. According to the U.S. Energy Information Administration, the average cost of electricity in the U.S. is about $0.10 per kilowatt-hour, or $0.028 per megajoule of electrical energy. Assuming all the electrical energy goes into heating the water on the cooktop, how much does it cost, in dollars, to heat the pot of water with electricity? Ignore the heat required to raise the temperature…

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