Basal Metabolic Rate. The basal metabolic rate is the rate

Chapter 17, Problem 17.104

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Basal Metabolic Rate. The basal metabolic rate is the rate at which energy is produced in the body when a person is at rest. A 75-kg (165-lb) person of height 1.83 m (6 ft) has a body surface area of approximately 2.0 m2 . (a) What is the net amount of heat this person could radiate per second into a room at 18C (about 65F) if his skins surface temperature is 30C? (At such temperatures, nearly all the heat is infrared radiation, for which the bodys emissivity is 1.0, regardless of the amount of pigment.) (b) Normally, 80% of the energy produced by metabolism goes into heat, while the rest goes into things like pumping blood and repairing cells. Also normally, a person at rest can get rid of this excess heat just through radiation. Use your answer to part (a) to find this persons basal metabolic rate.