On a cold winter day the temperature is 2C and the relative humidity is 15%. You inhale
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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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Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-0471720638
3rd Edition
Authors: Richard M. Felder, Ronald W. Rousseau
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