Please answer with Some endurance athletes (such as cyclists and long-distance r
ID: 2240488 • Letter: P
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Please answer with
Some endurance athletes (such as cyclists and long-distance runners) use a hypobaric chamber to enhance their ability to use oxygen. A hypobaric chamber mimics the effect of being at a high altitude, where the amount of oxygen available to the lungs is less than at sea level. A typical hypobaric chamber simulates the environment at an altitude of 11,000 ft above sea level, where the air pressure is approximately 6.7 times 104 Pa. What is the amount of oxygen available at this altitude compared with that at sea level? Express your answer as a fraction (without units).Explanation / Answer
The more the air above any point on the earth, the greater will be the barometric pressure at that point . this implies we have a direct relation between air pressure and amount of air..
as we go to higher altitudes we have les pressure and less amount of air .
pressure at sea level is 10^5 Pa .. at 11000 ft is 6.7 *10^4 Pa ..
at sea level available oxygen is 21% ... so compared with that of sea level we have 21%(.67) =14.07 %