A metal sphere cools at the rate of 3°C per minute when its temperature is 50°C. Find its rate of cooling at 40°C if the temperature of surrounding is 25°C.
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A: Given that,Thickness of glass window :t = 2.6×10 m Height of the glass window :h = 2.31 m The…
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A: The area of the rod is changes. The relation of the thermal expansion for the rod is ∆L=Lα∆T
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A: From the question it is given that: Heat transferred: ∆Q = 4.0×104 JMass of aluminium block: m =…
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Q: 18 grams of some unknown material is submerged in 325 grams of water initially at 16.8℃. If the…
A: Given Mass of unknown material is m=18 g Mass of water is M=325 g specific heat of water is cwater=…
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A: Given:- A rectangular building made of concrete has a length of 50.0 feet=15.24 m, width 35.0 feet…
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A: The solution can be given as follows :-
Q: A brass boiler has a base area of 0.15 m2 and thickness 1.0 cm. It boils water at the rate of 6.0…
A: Given information:The rate of evaporation of water (E) = 6 kg/min = 0.1 kg/sThe latent heat of…
Q: A 7.00 kg silver ingot is taken from a furnace, where its temperature is 800.0 °C, and placed on a…
A: Given Mass of silver ingot ms = 7.0 kg Initial temperature ∆T = 800° C Find, how much ice is melted,…
Q: One gallon of water, which is in a bottle at room temperature of 25 °C, is poured over 1.7 kilograms…
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Q: A glass window is 2.7 mm thick, is 1.59 m tall by 0.8 m wide, and has a thermal conductivity of 1.0…
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Q: How much heat is absorbed by contacting 15 grams of 100°C steam by a student’s hand. The steam is…
A: Heat given by steam is absorbed by hand .
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Q: A 0.045-kg ice cube at -30.0°C is placed in 0.405 kg of 35.0°C water in a very well-insulated…
A: Given data: The mass of ice is m=0.045 kg. The mass of water is M=0.405 kg. The initial temperature…
Q: A 100 L tank of gas on a certain track is filled to the brim with gasoline at 20 °C. On a hot day,…
A: Given values: Initial volume of gasoline or initial volume of the tank, V0=100 L Initial…
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Q: Water enters the tubes of a cold plate at 70°F with an average velocity of 40 ft/min and leaves at…
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Q: Exactly 46.33 kJ of heat is transferred to a 1.389 kg slab of nickel at a temperature of 12.7°C. (a)…
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Q: common temperature with the pan. What would be the final temperature, in degrees Celsius, of the…
A: According to Principle of calorimetry Heat given by hot substance = heat taken by cold substance
Q: Two concrete spans of a 180 m long bridge are placed end to end so that no room is allowed for…
A: Given: Length of bridge = 180mLength of one span Li=90mincrease in temperature ∆T = 20°Cα = 1.2*10-5…
Q: Suppose you want to raise the temperature of a 0.21-kg piece of ice from -20.0degrees Celsius to…
A: Given data, Mass =m=0.21 kg Latent heat of fusion Lf=334 kJ/kg Latent heat of vaporization Lv=2256…
Q: Calculate the amount of heat required to raise the temperature of 20 g of water vapor from 250°C to…
A: Given : mass of water vapor, m = 20 g = 20/1000 Kg = 0.02 Kg Change in temperature , ∆T =…
Q: The number of kilocalories in food is determined by calorimetry techniques in which the food is…
A:
Q: 18 grams of some unknown material is submerged in 325 grams of water initially at 16.8 °C. If the…
A: Given data The mass of the unknown material is mm = 18 g The mass of the water is mw = 325 g The…
Q: A steel section of the Alaskan pipeline had a length of 50.6 m and a temperature of 19.1 °C when it…
A: Given: The length of the pipeline is 50.6 m. The initial temperature is 19.1°C. The final…
Q: A piece of metal with a mass of 1.8 kg, specific heat of 205 J/kg/°C, and initial tem- perature of…
A:
Q: compound bar 2.0 m long is constructed of a solid steel core 1.0 cm in diameter surrounded by a…
A: The total heat transfer per unit time in the bar is 1.13cal/sec.
Q: To help prevent frost damage, 4.77 kg of 0°C water is sprayed onto a fruit tree. The latent heat of…
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Q: A copper calorimeter can with mass 0.100 kg contains0.160 kg of water and 0.0180 kg of ice in…
A: Given: The mass of copper calorimeter is mCu=0.100 kg. The mass of water is mw=0.160 kg. The mass…
Q: A plastic cup of negligible mass contains 0.280 kg of an unknown liquid at a temperature of 30.0 °C.…
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Q: On a linear X temperature scale, water freezes at -122.0°X and boils at 325.0°X. On a linear Y…
A: On scale X : water freezes at -122oX water boils at 352oX
Q: 1. (a) The number of kilocalories in food is determined by calorimetry techniques in which the food…
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Q: assume that for any movement, 10.0% of energy used by human muscles goes into performing the…
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Q: The average thermal conductivity of the walls (including windows) and roof of a house in the figure…
A: Given: The thermal conductivity of walls is k=4.8×10-4 kW/m·∘C. The thickness of the walls is…
Q: Latent Heat Substance (3/kg) Steam + water 2,260,000 Ice + water 333,000
A: Rate of cooling is equal to the rate of heat transfer. It depends on convection heat coefficient,…
Q: Dogs keep themselves cool by panting, which results in evaporation from moist tissues of the airway…
A: Temperature ( T ) = 95° F Converting it to Celsius temperature : T = 35° C Mass ( M ) = 25 lb…
Q: The height of the Washington Monument is measured to be 170 m on a day when the temperature is…
A: The height of Washington Monument, L0=170 m The temperature at the day time, T=37.0°C The…
Q: A 2 m2 window has a surface temperature of 15°C and the outside wind is blowing air at 2°C across it…
A: Q = h A ΔT = 125 W/m2K × 2 m2 × (15 – 2) K = 3250 W
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