1 atm
The force that air exerts on your body is called air pressure. This force is a result of the weight of the air above you pressing down on your body.
When air exerts a force, it is called air pressure. Air pressure is the force exerted by the weight of air above a given point.
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Air pressure decreases as temperature increases, and air pressure increases as temperature decreases. This is because warmer air is less dense and exerts less pressure, while cooler air is denser and exerts more pressure.
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One experiment that proves that air exerts pressure is the collapsing can experiment. In this experiment, a small amount of water is boiled in a can, and the can is then sealed. As the steam cools and condenses, it creates a vacuum inside the can, causing the outside air pressure to crush the can. This demonstration shows that air exerts pressure.
Assuming you are at sea level, the pressure will be about one atmosphere - or about one bar. (The pressure is the same for any area.)
Cold air exerts a low pressure. That is why cold air falls and hotter air rises above it.
During exhaling, air out of lungs, diaphragm is pushed upward and hence partial pressure in the ribs increases and the pressure outside the body is little less so air goes out of the body. During inhalation exact opposite of exhalation occurs Total pressure = partial pressure outside our body + partial pressure inside our body
The force that air exerts on a given area is called air pressure. Air pressure is the result of the weight of the air above the given area pressing down on it. This pressure can vary depending on altitude, weather conditions, and temperature.
air molecules in cold air exert more pressure because they are closer together and collide more often
Air pressure is generally lower in warm areas because warm air is less dense and therefore exerts less pressure on its surroundings. Cool air is denser and exerts more pressure, so areas with cooler temperatures typically have higher air pressure.