A person inhales and exhales 2.00 L of 37.0C air, evaporating 4.00 x 10 -2 g of

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A person inhales and exhales 2.00 L of 37.0°C air, evaporating 4.00 x 10-2 g of water from the lungs and breathing passages with each breath.

(a) How much heat transfer occurs due to evaporation in each breath?

(b) What is the rate of heat transfer in watts if the person is breathing at a moderate rate of 18.0 breaths per minute? 

(c) If the inhaled air had a temperature of 20.0°C, what is the rate of heat transfer for warming the air? 

(d) Discuss the total rate of heat transfer as it relates to typical metabolic rates. Will this breathing be a major form of heat transfer for this person?

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