Homes are often in ulated with fiberglass insulation in theirwalls and cei ling. The
Chapter 12, Problem 105(choose chapter or problem)
Homes are often in ulated with fiberglass insulation in theirwalls and cei ling. The thermal conductivity of fiberglass is0.040 W/mK. Suppose that the total surface area of the wallsand roof of a windowless house is 370 m2 and that the thicknessof the insulation is I 0 cm. At what rate does heat leave thehouse on a day when the outside temperature is 30C colderthan the inside temperature?
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