Find the number of btu conducted through a wall in 8 hours. the wall is 8 feet high by 24 feet long and has a total r-value of 16.2 hr⋅°f⋅ft2 /btu, including the effects of the inner and outer air layers. the inside temperature is 68°f and the outside temperature is 16°f.

ΔQ = 4930.37 BTu

Explanation:

given data

height h = 8ft

Δt = 8  hours

length L = 24 feet

R value = 16.2 hr⋅°F⋅ft² /Btu

inside temperature t1 = 68°F

outside temperature t2 = 16°F

to find out

number of Btu conducted

solution

we get here number of Btu conducted by this expression that s

    ......................1

here A is area that is = h × L = 8 × 24 = 1492 ft²

put here value we get

solve it we get

ΔQ = 4930.37 BTu

answer:

clock

explanation:

always running (on) sing each hour (chime) and the clock face (front)