Ahuman body while sleeping generates about 300 btus of body heat per hour. if two people are sleeping in a bedroom that is 15 ft × 12 ft × 10 ft, how many btus per cubic foot do they produce in 7 hours? (to the nearest tenth) a) 0.2 btus/ft3 b) 1.2 btus/ft3 c) 1.5 btus/ft3 d) 2.3 btus/ft3

Answers

given:

one person can produce:

E = 300 BTUs of body heat per hour

dimensions of the bedroom is:

V = 15 ft × 12 ft × 10 ft

required: is the energy per volume if 2 persons sleeps in 7 hours

let T be the total energy produce per volume

T = (300 BTU per hour per person) ( 7 hours) ( 2 person) / (  15 ft × 12 ft × 10 ft)

T = 2.3 BTU / ft^3

Step-by-step explanation:

Given:
one person can produce:
E = 300 BTUs of body heat per hour
dimensions of the bedroom is:
V = 15 ft × 12 ft × 10 ft

required: is the energy per volume if 2 persons sleeps in 7 hours
let T be the total energy produce per volume

T = (300 BTU per hour per person) ( 7 hours) ( 2 person) / (  15 ft × 12 ft × 10 ft)

T = 2.3 BTU / ft^3


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