The basal metabolism of a human adult is the total rate of energy production whe

Question

The basal metabolism of a human adult is the total rate of energy production when a person is not performing significant physical activity. It has a value around 125 W, most of which is lost by heat conduction to the surrounding air and especially to the exhaled air that was warmed while inside the lungs. Given this energy production rate, it would seem impossible for a human body to radiate 460 W as you calculated in the previous part. Which of the following alternatives seems to best explain this conundrum? a.The human body is quite reflective in the infrared part of the spectrum (where it radiates) so is in fact less than 0.1. b.The surrounding room is near the temperature of the body and radiates nearly the same power into the body.

Explanation / Answer

The surrounding room is near the temperature of the body and radiates nearly the same power into the body.

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