The volume of air taken in during a typical breath is 0.49 L.0.49 L. The inhaled...

The volume of air taken in during a typical breath is 0.49 L.0.49 L. The inhaled air is heated to 37∘C37∘C (the internal body temperature) as it enters the lungs. Because air is about 80%80% nitrogen, N2,N2, model it as an ideal gas.

Suppose that the outside air is at room temperature (16.0∘C)(16.0∘C) and that a person takes two breaths every 3.0 s.3.0 s. Assume that the pressure does not change during the process. How many joules of heat ?1Q1 does it take to warm the air in a single breath?

If the typical daily caloric intake is 3100 kcal3100 kcal per day, what percentage ?P of this caloric intake is used in heating the air the person breathes?

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genius_generous answered 1 year ago

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