114. Biology With each breath, a person at rest breathes in about 0.50 L of air, 20.9% of which is O₂- and exhales the same volume of air containing 16.3% O₂. In the lungs, oxygen diffuses into the blood, and is then transported throughout the body. Severe illness (altitude sickness) and even death can result if the amount of oxygen is too low. At sea level, atmospheric pressure is 1.00 atm, but at 3048 m (10,000 ft) it is reduced to 0.695 atm; the percentage of oxygen remains the same in both cases. Suppose that the temperature is 20 °C at both altitudes. What is the net number of oxygen molecules in each complete breath (a) at sea level and (b) at an altitude of 3048 m? (c) Use the results above to explain why peo- ple feel "out of breath" and must breathe more rapidly and deeply at high altitudes
114. Biology With each breath, a person at rest breathes in about 0.50 L of air, 20.9% of which is O₂- and exhales the same volume of air containing 16.3% O₂. In the lungs, oxygen diffuses into the blood, and is then transported throughout the body. Severe illness (altitude sickness) and even death can result if the amount of oxygen is too low. At sea level, atmospheric pressure is 1.00 atm, but at 3048 m (10,000 ft) it is reduced to 0.695 atm; the percentage of oxygen remains the same in both cases. Suppose that the temperature is 20 °C at both altitudes. What is the net number of oxygen molecules in each complete breath (a) at sea level and (b) at an altitude of 3048 m? (c) Use the results above to explain why peo- ple feel "out of breath" and must breathe more rapidly and deeply at high altitudes
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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114. Biology With each breath, a person at rest
breathes in about 0.50 L of air, 20.9% of which is 02,
and exhales the same volume of air containing 16.3%
O₂. In the lungs, oxygen diffuses into the blood, and is
then transported throughout the body. Severe illness
(altitude sickness) and even death can result if the amount
of oxygen is too low. At sea level, atmospheric pressure
is 1.00 atm, but at 3048 m (10,000 ft) it is reduced to
0.695 atm; the percentage of oxygen remains the same in
both cases.
Suppose that the temperature is 20 °C at both
altitudes. What is the net number of oxygen molecules in
each complete breath (a) at sea level and (b) at an altitude
of 3048 m? (c) Use the results above to explain why peo-
ple feel "out of breath" and must breathe more rapidly
and deeply at high altitudes.
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