Question: On a cold winter day the temperature is 2C and the relative humidity is 15%. You inhale air at an average rate of 5500mL/min and

On a cold winter day the temperature is 2°C and the relative humidity is 15%. You inhale air at an average rate of 5500mL/min and exhale a gas saturated with water at body temperature, roughly 37°C. If the mass flow rates of the inhaled and exhaled air (excluding water) are the same, the heat capacities (Cp) of the water-free gases are each 1.05 J/(g ∙°C), and water is ingested into the body as a liquid at 22°C, at what rate in J/day do you lose energy by breathing? Treat breathing as a continuous process (inhaled air and liquid water enter, exhaled breath exits) and neglect work done by the lungs.

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2C 15 rel humidity PHO 0155294 mm Hg 07941 mm Hg VHO inhaled 07941760 104510 mol HOmo... View full answer

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