Calculate the rate of heat conduction out of the human body, assuming that the core internal temperature is , the skin temperature is , the thickness of the fatty tissues between the core and the skin averages 1.00 cm, and the surface area is 1.40 m2. The thermal conductivity of human fatty tissues is .
The walls of a house have a surface area of 120 m2. The walls are 13.0 cm thick and their thermal conductivity is . The temperature inside the house is and the temperature outside is . Calculate the rate of heat loss through the walls.
A 13.0-cm-thickness wall has an area of 10.0 m2 and a thermal conductivity of . A 0.750-cm-thickness window has an area of 2.00 m2 and a thermal conductivity of . The temperature difference across the window is equal to the temperature difference across the wall. What is the ratio of the rate of heat conduction through the window to the rate of heat conduction through the wall?