Question

A human body while sleeping generates about 300 BTUs of body heat per hour. If two people are sleeping in a bedroom that is 12 ft × 12 ft × 9 ft, how many BTUs per cubic foot do they produce in 8 hours? (to the nearest tenth)

Answer 1

What u got to do is time the like term and do the unlike terms and the will be yo answer

Answer 2

3.7 BTUs per cubic foot.

Explanation:

A human body while sleeping generates about 300 BTUs of body heat per hour.

We have to calculate the amount of heat per cubic feet produced by 2 persons sleeping in a bedroom of 12 ft×12 ft× 9 ft room in 8 hours.

Two persons will produce the heat in eight hours = 300×2×8 = 4800 BTUs

Volume of bedroom = 12×12×9 = 1296 cubic foot.

Now BTUs per cubic foot produced = Total body heat produced in 8 hours/Volume of room

= 4800/1296 = 3.703 = 3.7 BTUs per cubic foot.

Therefore answer is 3.7 BTUs per cubic foot.