ti Coure: Purs 101 introduct ad Wite | ... Chapter 12, Problem 077 Suppose that

Question

ti Coure: Purs 101 introduct ad Wite | ... Chapter 12, Problem 077 Suppose that air in the human lungs has a temperature of 37°C, and the partial pressure of water vapor has a value of 5.5 x 103 Pa. What is the relative humidity in the lungs? Consult the vapor pressure curve 8000 7000 6000 5000 4000 3000 2000 1000 10 20 30 40 50 Units the tolerance is +/-296 Click if you would like to Show Work for this question: Open Sho Work Polic2000-2017 John Wiley & Sens In. All Rights Reserved. A Division of John Wley & Sons Inc

Explanation / Answer

Given that,

partial pressure of water vapour = 5.5*10^3 kPa

We know that,

Relative humidity = PH2O * 100 / P*H2O

where, PH2O = partial pressure of water vapour

P*H2O = equilibrium partial pressure

P*H2O at 37 oC = 6258 kPa [From the equation P = e (77.345 + 0.0057*T - 7235 / T) / T8.2]

RH = 5.5*10^3 * 100 / 6285

RH = 87.5 %

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