A closed box is filled with dry ice at a temperature of -88.3 oC, while the outside temperature is 18.8 oC. The box is cubical, measuring 0.309 m on a side, and the thickness of the walls is 3.80 × 10-2 m. In one day, 3.62 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made.

Q: How many grams of water at 100 degrees Celsius can be evaporated per hour per square centimeter by…

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Q: Consider a 20 cm thick granite wall with a thermal conductivity of 2.79 W/m·K. The temperature of…

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Q: A building made with a steel structure is 650 m high on a winter day when the temperature is 18°C.…

A: Given data: Length of the building L=650 m Temperature T1=180C. Length of the building at…

Q: A 600 cm X 1760 cm house is built on a 13.2 cm thick concrete slab of thermal conductivity 0.66…

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Q: An aluminum sphere of surface area (0.08) is heated to a temperature of (521)K If the rate of heat…

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Q: Consider a flat-plate solar collector placed on the roof of a house. The temperatures at the inner…

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Q: copper slab of length 15.0cm and cross-section area 105cm2 has Th=125degree Celsius and Tc=10degree…

A: Heat flow Q = KA (ΔΤ/Δx)t

Q: A 10 kg piece solid of aluminum, which has a specific heat of 900 J/(kg⋅°C), is warmed so that its…

A: Given : m = 10 kg c = 900 J/(kg.°C) ∆T = 3°C

Q: The average thermal conductivity of the walls, roof and windows of a house is 0.480 W/mºC and the…

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Q: A 680 cm X 1000 cm house is built on a 17.2 cm thick concrete slab of thermal conductivity 0.8…

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Q: * Suppose you and your friends are going on a picnic to Tagaytay, which is three hours drive from…

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Q: Animal tissue helps prevent excessive heat loss by conduction. In species 1, the outer tissue has…

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Q: picture window has dimensions of 1.65 m by 2.2 m and is made of glass 7.5 mm thick. On a winter day,…

A: Length , L = 1.65 m Breadth , B = 2.2 m  Thickness , ∆x = 7.5 mm = 7.5 x 10-3 m TC = 24 °C TH = 17.5…

Q: Some properties of a certain glass are listed here: Density 2300 kg/m3 Specific heat capacity 840…

A: K= 0.80 W/m ∙ C°  A= (2.7×2.4) = 6.48 m2  ∆T = 19-4 = 15 x= 0.009 m

Q: A closed box is filled with dry ice at a temperature of -80.9 oC, while the outside temperature is…

A: Given values: Temperature of dry ice, T1=-80.9 °C Outside temperature, T2=28.4 °C Side of the cube,…

Q: Two bars, A and B, each of length 2.3 m and cross-sectional area 1.7 m2, are placed end to end as…

A: Equivalent thermal resistance  Req = R1+R2   (series combination)  Req = (L/K1A)+(L/K2A)  Req =…

Q: A carpenter builds a solid wood door with dimensions 2.00 m ×0.95 m × 5.0 cm. Its thermal…

A: The relation between temperature in kelvin and temperature in centigrade is:

Q: Let us represent the body's surface tissue as layer of thickness X1=5 cm which has a thermal…

A: Heat loss through a series of layers is given by:dQdt=A∆Tκ1d1+κ2d2+...+κndnwhere,κi is the thermal…

Q: A copper rod has a length of  1.5m1.5m and a cross-sectional area of 4.0×10−4m24.0×10−4m2. One end…

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Q: A heat-conducting rod, 1.60 m long and wrapped in insulation, is made of an aluminum section that is…

A: Given data: The length of aluminum rod is LA=0.90 m The length of the copper rod is LC=0.70 m The…

Q: A ceramic mug is at a temperature of 343 K (about 160°F). The mug has a surface area of about 0.03…

A: Given data The temperature of the ceramic mug is Tc = 343 K. The surface area of the mug is A =…

Q: Heat is conducted through a slab composed of parallel layers of different conductivities, 0.0050 and…

A: The amount of conduction through a slab is  H = K A (T' - T)d where, K is the coefficient of thermal…

Q: For a temperature difference ΔT = 20C, one slab of material conducts 10W/m². What is the rate of…

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Q: A series of composite wall of a furnace consists of 20cm of firebrick, 15cm of a  high temperature…

A: GIVEN Firebrick k=1.4W/m-K High temperature insulation k = 0.22 W/m-K Ordinary brick k = 0.90 W/m-K…

Q: A picture window has dimensions of 1.34 m by 2.65 m and is made of glass 5.93 mm thick. On a winter…

A: dimensions=1.34×2.65thickness=5.93 mmoutside temp=20°Cinside temp= 19.5 °C

Q: One end of an aluminum rod (50 cm long) is maintained at 1000C by immersing in a pot of boiling…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

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: A 405-g sample of lead with specific heat cPb = 128 J/(kg · °C) at 87.0°C and a 220-g sample of…

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Q: Q25 1) The walls of a house are 17 cm thick and have an average thermal conductivity four times that…

A: We need to calculate rate of heat conduction and the total heat conducted in 3 min.

Q: Calculate the heat transfer from inner layers of the skin to the outer layer of the skin having the…

A: Scenario - Heat is transferred from inner to outer layer of skin . Given : Thickness →d=1 cm=0.01 m…

Q: A heavily insulated copper rod or diameter 2 cm and length 25 cm is used to pipe heat between two…

A: The rate of heat transfer is given by  H = K A (T ' - T)L where, K is the coefficient of thermal…

Q: An aluminum bar has a cross-section that is 5.07 cm by 6.38 cm and is 1.53 m long. Aluminum has a…

A: Given, crossection of the aluminium bar, 5.07 cm ×6.38 cmlength of the aluminium bar, L = 1.53…

Q: An aluminum bar has a cross-section that is 4.31 cm by 7.32 cm and is 2.38 m long. Aluminum has a…

A: Given data: The cross-section is b×h=4.31 cm×7.32 cm The thermal conductivity of aluminum is =205…

Q: A heavily insulated copper rod or diameter 2 cm and length 25 cm is used to pipe heat between two…

A: The rate of heat transfer is calculated by using the formula P=kATH-TCl , where k=398 W/m K is the…

Q: A solid concrete wall has dimensions 4.0 m x 2.4 m and is 30 cm thick. The thermal conductivity of…

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Q: A 780 cm X 1320 cm house is built on a 12 cm thick concrete slab of thermal conductivity 0.68 W/m.K.…

A: Given that--- A 780 cm X 1320 cm house is built on a 12 cm thick concrete slab of thermal…

Q: A 1100 cm X 1440 cm house is built on a 12.8 cm thick concrete slab of thermal conductivity 0.66…

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Q: A closed box is filled with dry ice at a temperature of -78.5 degreesC while the outside temperature…

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Q: A closed box is filled with dry ice at a temperature of -81.3 oC, while the outside temperature is…

A: we will use formula of heat energy. 81.3+273= 354.3 kelvin 21.5+273= 294.5 kelvin

Q: The conduction heat flux through a wall is known to be 2020 W/m² and the convection heat flux from…

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.