Question

Suppose that 2 people exercising in an enclosed room are each generating about 2,400 BTUs of body heat per hour. If the room is 20 ft × 12 ft × 10 ft, how many BTUs per cubic foot do they produce in 1 hour?

Answer 1

2 BTUs/cubic foot.

Explanation:

Suppose that 2 people exercising in an enclosed room are each generating about 2,400 BTUs of body heat per hour.

So, 2 people will produce (2400 × 2) = 4800 BTUs for 1 hour.

Now, the volume of the room with dimensions (20 ft by 12 ft by 10 ft) will be (20 × 12 × 10) = 2400 cubic feet.

Therefore, the number of BTUs per cubic foot will be produced by
`(4800)/(2400) = 2` BTUs/cubic foot. (Answer)