Question

A refrigerator is maintained with a constant internal temperature of 4.0°C by removing thermal energy from the interior at a rate of 60. W. You can model the refrigerator as an oblong of dimensions 0.55 m × 0.65 m × 1.1 m. You can assume that the internal surfaces of the refrigerator are at a single constant and uniform temperature and the outside surface of the refrigerator is also at a single constant and uniform temperature. Finally assume the refrigerator is insulated with a single material of a uniform thickness of 20 mm. If the outside surface of the refrigerator is at a constant temperature of 18°C what is the thermal conductivity of the insulating material? k = (2.s.f)

          A refrigerator is maintained with a constant internal temperature of 4.0°C by removing thermal energy from the interior at a rate of 60. W. You can model the refrigerator as an oblong of dimensions 0.55 m × 0.65 m × 1.1 m. You can assume that the internal surfaces of the refrigerator are at a single constant and uniform temperature and the outside surface of the refrigerator is also at a single constant and uniform temperature. Finally assume the refrigerator is insulated with a single material of a uniform thickness of 20 mm.

If the outside surface of the refrigerator is at a constant temperature of 18°C what is the thermal conductivity of the insulating material?

k = (2.s.f)

A refrigerator is maintained with a constant internal temperature of 4.0°C by removing thermal energy from the interior at a rate of 60. W. You can model the refrigerator as an oblong of dimensions 0.55 m × 0.65 m × 1.1 m. You can assume that the internal surfaces of the refrigerator are at a single constant and uniform temperature and the outside surface of the refrigerator is also at a single constant and uniform temperature. Finally assume the refrigerator is insulated with a single material of a uniform thickness of 20 mm.

If the outside surface of the refrigerator is at a constant temperature of 18°C what is the thermal conductivity of the insulating material?

k = (2.s.f)

Added by Allison T.

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