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
Elementary Algebra
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Author:Lynn Marecek, MaryAnne Anthony-Smith
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Chapter8: Rational Expressions And Equations
Section8.7: Solve Proportion And Similar Figure Applications
Problem 8.149TI: Pediatricians prescribe 5 milliliters (ml) of acetaminophen for every 25 pounds of a child’s weight....
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Transcribed Image Text:Problem 5
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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