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In general, barometric pressure, or atmospheric pressure, drops as you go up in elevation. For example, at 18,000 ft. above sea level, the average barometric pressure is about half the average pressure at sea level
(see the related links for charts)
However, barometric pressure also varies widely with the weather (weather charts almost always show the movement of low pressure and high pressure zones), so true barometric pressure cannot simply be calculated, but must be measured. In the United States, the National Oceanic and Atmospheric Administration provides hourly barometric readings for many locations across the country
(see related National Weather Service measurement link)
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What two properties show that a drink is a fluid?
at any altitude, fluids flow from areas of higher pressure to some areas of lower pressure.
Is pressure higher at a lower or at a higher elevation?
lower elevation
Why do the boiling point of water decrease on climbing up the higher altitude?
Water usually boils at 212F or 100C at sea level. As you go higher up in the atmosphere (higher altitude), the amount of atmosphere pushing down on you decreases, hence the pressure decreases. Water boils when the vapor pressure of the water equals the atmospheric pressure. Vapor pressure increases with increasing temperature, so when there is less atmospheric pressure, a smaller vapor pressure is required to get the water boiling, hence a lower boiling temperature.
How does altitude change the boiling point of water?
Water boils when its vapor pressure equals the vapor pressure of the surrounding atmosphere. The atmosphere surrounding the water exerts a pressure, preventing gas molecules escaping from the surface. At higher altitudes, this pressure is much lower so water will boil at a lower temperature.
Describe the difference if any there would be between the boiling point of alcohol measured in Houston and in Denver the mile high city?
the boiling point would be lower because pressure decreases as altitude increases. the boiling point would be lower because pressure decreases as altitude increases.
What happen to the air pressure in a higher altitude?
The air pressure is lower the higher the altitude. That is basically how an altimeter works.
What is the relation between the altitude compared to sea level and the boiling point of water?
In general, the higher the altitude, the lower the pressure, and the lower the pressure the lower the boiling point.
What can be done to raise the boiling point of water?
All you have to do to reduce the boiling point of water is go to a higher altitude and boil it.
True or false the higher the altitude the lower the air pressure?
true?
Is the temperature cooler in low altitude or higher altitude?
There is ever-so-slightly less... but good luck measuring that tiny difference!Altitude is the point at which an item sits in relation to sea or ground level.
What happens to pressure as altitude increased?
As altitude increases (i.e. when you get higher) pressure falls off inversely; a change near the higher reaches will not have as much of a pressure differential as the same distance change lower down.
Why does atmospheric pressure varies from place to place?
Atmospheric pressure varies due to elevation (altitude) and because of the motion of air masses over the surface. For altitude differences, the pressure is the result of the surrounding air. Higher pressure is experienced at lower altitudes just as higher pressure is found in greater depths within a body of water. A simple explanation is that the "column of air" above a surface "pushing down" is much shorter if you move higher into the "sea of air." This lower weight is expressed as lower pressure, which represents fewer molecules within a given volume of air. The higher the altitude (eg. mountains) = The lesser the atmospheric pressure The lower the altitude (eg. sea level) = The higher the atmospheric pressure
Why does water boil at a lower temperature as altitude increases?
Air pressure affects the boiling point. Lower air pressure is present at higher altitudes.
Why is air pressure different at various places on earth?
Atmospheric pressure varies due to elevation (altitude) and because of the motion of air masses over the surface. For altitude differences, the pressure is the result of the surrounding air. Higher pressure is experienced at lower altitudes just as higher pressure is found in greater depths within a body of water. A simple explanation is that the "column of air" above a surface "pushing down" is much shorter if you move higher into the "sea of air." This lower weight is expressed as lower pressure, which represents fewer molecules within a given volume of air. The higher the altitude (eg. mountains) = The lesser the atmospheric pressure The lower the altitude (eg. sea level) = The higher the atmospheric pressure
How changes in altitude affect pressure?
At high altitude the pressure is lower.
Would the air pressure in a valley be higher or lower than at sea level?
This depends on the altitude of this valley; generally is higher.
How does altitude effect boiling points?
The higher the pressure, the higher the boiling point. Boiling occurs when the atmospheric pressure equals the vapor pressure. So, at higher altitudes where the atmospheric pressure is lower, the vapor pressure is also lower which in turn creates a lower boiling point which causes foods to have to cook longer.
