It is important for the body to have mechanisms to effectively cool itself; if n

Question

It is important for the body to have mechanisms to effectively cool itself; if not, moderate exercise could easily increase body temperatures to dangerous levels. Suppose a 70 kg man runs on a treadmill for 30 minutes , using a metabolic power of 1000 W . Assume that all of this power goes to thermal energy in the body. If he couldn't perspire or otherwise cool his body, by how much would his body temperature rise during this exercise? Please show your work. Express your answer using two significant figures.

Explanation / Answer

Specific Heat of Human Body : 3470 J/Kg

Total Heat produced = 1000 x 32 x 60 = 1920000 J

Heat Rise

1920000 = m c T

1920000 = 70 x 3470 x T

T = 7.9 degree celcius

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