A closed box is filled with dry ice at a temperature of -93.7 oC, while the outside temperature is 21.5 oC. The box is cubical, measuring 0.348 m on a side, and the thickness of the walls is 4.20 × 10-2 m. In one day, 3.33 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made.

Q: A copper rod is 0.705 m long with a rectangular cross section of dimensions 0.0555 m by 0.0755 m.…

A:

Q: A glass window is 3.7 mm thick, is 2.29 m tall by 1.04 m wide, and has a thermal conductivity of 1.0…

A: Given , thickness = 3.7 mm height = 2.29 m Width = 1.04 m Thermal conductivity k = 1 W/m K Inside…

Q: A closed box is filled with dry ice at temperature of - 78.5°C, while the outside temperature is…

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

Q: A copper rod is 0.803 m long with a rectangular cross section of dimensions 0.0539 m by 0.0807 m.…

A: Given Data: The length of a copper rod is, L=0.803 m The cross-sectional dimension of a rod is,…

Q: A metal rod is 10 cm long and has a diameter of 2 cm one end is in contact with steam at 100 deg C…

A:

Q: A Styrofoam box has a surface area of 0.80 m2 and a wall thickness of 2.0 cm. The temperature of the…

A: Given:area = 0.80 sq mthickness = 2 cmtemperature = 5o Ctime taken = 8 hmass = 5 kg

Q: A Styrofoam box has a surface area of 0.84 m2 and a wall thickness of 2.0 cm. The temperature of the…

A:

Q: One end of an insulated metal rod is maintained at 100 degrees C, while the other end is maintained…

A: The mass of ice is, m=8.5 g=0.0085 kg The time taken in heat conduction is, t=10 min=10×60 s=600 s…

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: A closed box is filled with dry ice at a temperature of -80.1 °C, while the outside temperature is…

A:

Q: Water is placed into an iron container along with an ice cube. They are thermally isolated. The…

A: mass of iron container = 620 g Initial temperature of container = 70o C mass of water (m) = 200 g…

Q: 500 g of Ice at 0 °C is kept in an insulated cubic box. The length of the box is 30 cm and the…

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Q: A closed box is filled with dry ice at a temperature of -83.9°C, while the outside temperature is…

A:

Q: A closed box is filled with dry ice at a temperature of -86.0 °C, while the outside temperature is…

A: Step 1:Step 2: Step 3: Step 4:

Q: A copper cylinder with a mass of 125 grams and a temperature of 345 ° C cools when placed in a glass…

A: Given data: Mass of the cylinder,mC=125 g = 0.125 kg Cooling temperature, TC=345 oC = 345+273 = 618…

Q: An aluminum bar has a cross-section that is 5.1 cm by 6.93 cm and is 1.91 m long. Aluminum has a…

A:

Q: A Styrofoam box has a surface area of 0.81 m² and a wall thickness of 2.0 cm. The temperature of the…

A:

Q: A closed box is filled with dry ice at a temperature of -88.3 oC, while the outside temperature is…

A: The rate of heat conduction is given by

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 4.37 cm by 6.87 cm and is 2.3 m long. Aluminum has a…

A: Because of temperature drop across the aluminum bar, heat transfer shall occur through aluminum bar.…

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: Ice of mass 12.8 kg at 0°C is placed in an ice chest. The ice chest has 2.7 cm thick walls of…

A: Given:mass of ice, m = 12.8 kginitial temp of ice, Ti = 0 oCthickness of the chest, x = 2.7 cm =…

Q: A classroom has dimensions 8.00 m x 10.00 m x 3.00 m. A 1000 W electric space heater is being used…

A: Volume of room V=lbh=8*10*3=240m3 heat gain by air=heat given by heater

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

A:

Q: One end of an insulated metal rod is maintained at 1000C, while the other end is maintained at 00C…

A: Given : Length (L) = 60 cm = 0.60 m Area (A) = 1.25 cm2 = 1.25 x 10-4 m2 Mass (m) = 8.50 g = 8.5 x…

Q: A pond with a flat bottom has a surface area of 946 m2 and a depth of 2.44 m. On a warm day, the…

A: The rate of heat energy due to conduction is

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: A Styrofoam box has a surface area of 0.80 m and a wall thickness of 2.0 cm. The temperature of the…

A:

Q: One end of an insulated metal rod is maintained at 100°C, and the other rod end is maintained at 0°C…

A: Given that Temperature of hot end is θ1 = 100°C Temperature of cold end is θ2 = 0°C Length of the…

Q: The ice cube has a mass of 80.0 g and is initially at -15.0 degrees Celsius. What is the heat…

A:

Q: A thermal window, with an area of 6.0m ^ 2, is constructed of two layers of glass, each 4.0mm thick,…

A: Given, Area of window, A=6 m2 Th. conductivity of window glass & air, k1=0.8 W/m.C∘ &…

Calorimetry

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