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a horizontal wall facing up 4m by 6m in size is maintained at a temperature of 90°c. The surrounding air at both sides is 30°c. how much heat ia lost from both sides of the wall in one hour? is

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Carrensumagang273go

Answer:

The heat loss in the wall is measured in BTUs and the formula is U value x wall area x delta T. In our example, this would be: . 07 x 164 x 28 = 321.44 BTUH (British Thermal Units per Hour). This is the amount of heat that is escaping through the exterior walls based on the amount of insulation in them

Explanation:

#if I'm correct please Brainlest Me

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