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What is atmospheric pressure Give 5 applications for atmospheric pressure?
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∙ 12y ago
Weatherforecasting
altimeter settings in aircrafts
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∙ 12y ago
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Which gas is used in the contact process?
A vanadium pentoxide catalyst is used in order to speed up the reaction
Why water cannot be used in simple barometer?
Following are the reasons why mercury and not water is used in a barometer:1. Mercury is relatively denser than water, consequently the length of the column of water would have to be about 34 feethigh to exert pressure equal to that of the atmosphere while the column of mercury need to be only 30 inches to exert pressure equal to that of the atmosphere.2. Mercury has a very low vapor pressure when compared to that of water. So it is more sensitive than water to the changes in the atmospheric pressure and rises more quickly to record the changes in the atmospheric pressure.3. Mercury's freezing point is much lower than that of water's so it can record the atmospheric pressure at temperatures below that of 0 degrees centigrade.4. Mercury does not evaporate easily so very little mercury vapor enters the vacuum above the mercury in the tube.5. Mercury being a metal shines brightly and so can be used to read the markings on the tube easily.
What is the difference between gauge pressure and absolute pressure?
Absolute pressure = gauge pressure + atmospheric pressureWhen using a pressure gauge, like when measuring the pressure of the air in a tire, the gauge is actually reading the difference between the atmospheric pressure and the atmospheric pressure. So if the gauge measures 30 psi, and taking atmospheric pressure at about 14.7 psi, the absolute pressure in the tire is actually about 44.7 psi. If the tire is flat, then the gauge will read zero psi, but there is not a vacuum - there is still some air present in the tire, and the absolute pressure of this air is the same as the atmospheric pressure (about 14.7 psi).See related link: Guide to the Measurement of Pressure and Vacuum.
What is the pressure of asthenosphere?
5
Air pressure at sea level?
Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of air. Air pressure above sea level can be calculated as p = 101325 (1 - 2.25577 10-5 h)5.25588 where p = air pressure (Pa) h = altitude above sea level (m) The standard atmosphere is a unit of pressure and is defined as being equal to 101.325 kPa.
What period of time do boiling eggs get ready?
Depending on the atmospheric pressure where you live, 5-30 minutes.
Why is the atmospheric pressure at the top of mt Everest 5 lbin squared much less than the atmospheric pressure here on earth 14.7 lbin squared?
The atmospheric pressure is caused by the weight of the air on top of us. At the top of mount Everest, there is less air above the exhausted climber (because a lot of the air is below). Less air, less weight, less pressure.
What are the 5 external factors that must be present to sustain life?
oxygen,water,normal body temperature,appropriate atmospheric pressure,nutrients
What are 5 words that describe the atmosphere?
atmospheric
What pressure should the low pressure port be on a 2001 Chevy blazer?
It will depend on the outside air temp, but 35 give or take 5 is a good place to start.
What are the modern applications of SAW?
5
Why is there more air pressure in the first layer of atmosphere?
The atmosphere consists of 5 layers: the troposphere, which we live in; followed by stratosphere, mesosphere, thermosphere and exosphere. Air pressure at any of these layers is typically caused by hydrostatic pressure, defined as P = hpg, where P is the pressure, h is the height or depth of fluid, and g is the gravitational acceleration. In simple context, my physics lecturer once explained to me: the reason why we live under an atmospheric pressure of 1 bar is simply because there is a column of air above us. As we move upwards (e.g. in an airplane or on top of a mountain), the height of this column is reduced, thus the atmospheric pressure is less. Therefore, the first layer of atmosphere (or the lowest layer) will experience the highest air pressure.
Which gas is used in the contact process?
A vanadium pentoxide catalyst is used in order to speed up the reaction
How do you calculate absolute pressure at 55 metres below sea level when atmospheric pressure is 103 kilo pascals?
absolute pressure of liquid = atmospheric pressure (P₀) + (relative density (ρ) of liquid x height of liquid x gravitational acceleration) P₀ = 103000 Pa ρ of sea water at 15°C = 1025 kg/m³ h = 55 m g = 9.81m/s² Answer = 103000 Pa + (1025 kg/m³ x 9.81 m/s² x 55 m) Answer = 6.56 x 10^5 Pa (Sorry about using the carat in signifying the scientific notation, but apparently I cannot find a way to type a superscript 5 using code.)
What are the types of application?
In .net having below applications: 1) Console applications 2) Windows GUI applications (Windows Forms) 3) Windows Presentation Foundation (WPF) applications 4) ASP.Net applications (Web Applications) 5) Web services applications 6) Windows services applications
How much lift is exerted on the wings of an airplane that have a total surface area of 108 m when the difference in air pressure below and above the wings is 5 percent of atmospheric pressure?
What type of airplane, how much does it weigh, and how fast is it traveling. Is it flying level to the horizon, or is it increasing/decreasing elevation. You have to take in to account these factors before you can answer that question.
What chilly solid changes directly to a gas at -78.5 celsius?
Frozen Carbon Dioxide also called dry ice. The behavior you describe happens only at pressure less than 5 times sea-level atmospheric pressure. Above that pressure, carbon dioxide has the familiar three states ... solid when it's chilly, liquid when it melts, and gas when it gets warm enough. The range of temperature across which it remains liquid depends on the pressure.
