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The percentage of oxygen in the air is for the most the same in the entire atmosphere.
It is only in the very high altitudes that the percentage of oxygen actually diminishes. This because it is heavier than the helium and hydrogen that is up there.
What matters however is the pressure of the air.
At high altitude you breathe less oxygen because pressure is lower.
At low altitude you breathe more oxygen due to higher pressure.
The pressure of the atmosphere drops by approximately 50% every 18.000 feet (5.600 Meters, 5.6 Kilometer's)
Oxygen, being a gas, exerts a partial pressure, which is determined by the prevailing environmental pressure. At sea level, the atmospheric pressure is 760mmHg, and oxygen makes up 21% (20.094% to be exact) of inspired air: so oxygen exerts a partial pressure of 760 x 0.21 = 159mmHg.
The partial pressure does not actually change much at all with altitude since the percentage of oxygen remains the same.
Our body however (with altitude) utilizes less oxygen because there is less of it and this effectively reduces partial pressure of oxygen in our bodies.
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What else can I help you with?
Does melting point changes from altitude to altitude?
Yes, it does. It is do because with change in altitude their is change in temp. and pressure which also changes the melting point. The change in melting point could be small to large depending upon change in conditions at different altitudes.
How does altitude affect phase change?
The change in pressure is highly affected by altitude.
How does barometric pressure change with altitude?
Because pressure decreases as you go up in altitude and increases when you go down in altitude. Hope this helped!
What happens to air pressure's rate of change as altitude increases?
As altitude increases, the rate of change of air pressure decreases. This is because the air becomes less dense at higher altitudes, leading to a more gradual decrease in pressure with increasing altitude.
How many meters per millibars?
There is no direct conversion between meters and millibars, as they are units measuring different things (distance and pressure, respectively). However, in meteorology, changes in atmospheric pressure can be used to estimate changes in altitude. As a rough guide, a change of around 8 millibars in pressure corresponds to a change in altitude of around 100 meters.
Why does air pressure change with altitude?
Air pressure changes with altitude because as you go higher in the atmosphere, there is less air above pushing down on you. This results in lower air pressure at higher altitudes.
Does melting point changes from altitude to altitude?
Yes, it does. It is do because with change in altitude their is change in temp. and pressure which also changes the melting point. The change in melting point could be small to large depending upon change in conditions at different altitudes.
How does air pressure change as altitude change?
Increased altitude means decreased air pressure.
Does air pressure and temperature change with altitude?
Yes, air pressure decreases with altitude because the atmosphere becomes less dense. In contrast, temperature changes can vary with altitude; typically, temperature decreases with altitude, but there are atmospheric layers where temperature may increase, known as inversions.
How does altitude affect phase change?
The change in pressure is highly affected by altitude.
Does air pressure change as altitude increases?
Yes, air pressure decreases as altitude increases.
How does barometric pressure change with altitude?
Because pressure decreases as you go up in altitude and increases when you go down in altitude. Hope this helped!
What happens to air pressure's rate of change as altitude increases?
As altitude increases, the rate of change of air pressure decreases. This is because the air becomes less dense at higher altitudes, leading to a more gradual decrease in pressure with increasing altitude.
How does air pressure change in the atmosphere as the altitude change?
By farting
How does the atmospheric pressure change?
Atmospheric pressure changes with altitude, decreasing as you go higher in the atmosphere. It also varies with weather conditions, such as high or low pressure systems moving in. Additionally, temperature changes can influence atmospheric pressure, with colder air typically having higher pressure.
What could cause a change in air pressure?
Altitude
How many meters per millibars?
There is no direct conversion between meters and millibars, as they are units measuring different things (distance and pressure, respectively). However, in meteorology, changes in atmospheric pressure can be used to estimate changes in altitude. As a rough guide, a change of around 8 millibars in pressure corresponds to a change in altitude of around 100 meters.
