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Air pressure is the force (weight of Earth's atmosphere) exerted on you by the weight of tiny particles of air, the air molecules above and around you. This is also referred to as "barometric pressure" (measured with a barometer) and will change with altitude or elevation. The standard pressure is 1 ATM (atmosphere), equal to 101325 pascals or 1013.25 mbar.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoThe pressure(force per unit area) exerted by the weight of air on anything. If you carry a school bag you feel pressure on your shoulders. The air above you in atmosphere also has weight and its exerting pressure on you everyday.
Air is a mixture of gases and its molecules are in constant rapid motion. If we put air inside a container the molecules collide with the container walls and exert force on them. This force per unit area is called air pressure inside the container.
Wiki User
∙ 13y agoWiki User
∙ 13y agoAir pressure is the force exerted (applied is simpler)by the weight of a column of air above a particular location.
Wiki User
∙ 15y agocaused by air molecules pushing on the Earth's surface. Determined by 1. Air temperature 2. Air density 3. Amount of water vapor in air
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What is the definition of kilopascal?
One thousand pascals. A pascal is a unit of atmospheric pressure or pressure generally. There is about 7 kilopascals in one psi. The atmospheric pressure at sea level is approximately one hundred kilopascals.
How does the human body resist the atmospheric pressure?
because our body pressure is equal to the atmospheric pressure.
What is the relation between pressure in atmosphere and pressure?
Atmospheric pressure is the surrounding pressure around us. We live in the atmosphere and treat the atmospheric pressure as the base pressure. A pressure gauge would read 0 at atmospheric pressure. When we define the pressure in scientific way of absolute pressure, we need to add up an atmospheric pressure to the measured pressure.
What is the definition of psia and psig in pressure unit?
Both units are based on the imperial Pounds per Square Inch (PSI). The suffix A refers to Absolute pressure, while G refers to Gauge pressure. Gauge pressure is defined as the difference between the measured pressure and atmospheric pressure. Most pressure measuring devices (gauges) measure the gauge pressure, as one side of the gauge is exposed to atmospheric pressure.
Which is true about intrapulmonary pressure and intrapleural pressure?
Intrapulmonary pressure will equalize to atmospheric pressure during a breathing cycle, but intrapleural pressure should always be less than atmospheric pressure.
Do all the liquids at their boiling points have same vapour pressure?
At the same atmospheric pressure, yes. That's kind of the definition of boiling point: when the vapor pressure is the same as the atmospheric pressure.
Why was 1013.25hPa taken as standard atmospheric pressure?
It is an definition by the international organization. When the temperature is 15 centigrade degree. To measure the atmospheric pressure is 1013.25 hundred pascals.
What is the definition of kilopascal?
One thousand pascals. A pascal is a unit of atmospheric pressure or pressure generally. There is about 7 kilopascals in one psi. The atmospheric pressure at sea level is approximately one hundred kilopascals.
What is the definition of Anticyclone?
An anticyclone is a region of high atmospheric pressure relative to the surrounding air.
What is the definition of barometer?
An instrument for measuring atmospheric pressure, used especially in weather forecasting.
High pressure system definition?
is a region where the ATMOSPHERIC at the surface of the planet is greater than its surrounding environment
What is a sentence with the word atmospheric pressure?
Atmospheric pressure
Choose the best definition of STP?
a term that indicates a combined measurement of standard atmospheric pressure and room temperature. A+
Does rain usually occur in high atmospheric pressure or low atmospheric pressure?
rain occurs in low atmospheric pressure.
How does the human body resist the atmospheric pressure?
because our body pressure is equal to the atmospheric pressure.
Can mean effective pressure less than atmospheric pressure?
no Because any body subject is affected by the atmospheric pressure in the case of its occurrence under the pressure of what it means that the pressure for increased atmospheric pressure.
What is the relation between pressure in atmosphere and pressure?
Atmospheric pressure is the surrounding pressure around us. We live in the atmosphere and treat the atmospheric pressure as the base pressure. A pressure gauge would read 0 at atmospheric pressure. When we define the pressure in scientific way of absolute pressure, we need to add up an atmospheric pressure to the measured pressure.
