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To measure a pressure above atmospheric pressure you would use?
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∙ 13y ago
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To measure pressure above atmospheric pressure you would use a?
mercury manometer
Why is atmospheric pressure greater at sea?
Atmospheric pressure is the weight of the air above the point... at sea level there is more air above the point then there would be at 10,000ft
What is atmospheric pressure of oxygen at an elevation of 20000 ft above sea level?
The atmosperic pressure would be about 370 millibar
Why is atmospheric pressure greater at sea level than at the top of a mountain 5000 m above sea level?
Atmospheric pressure is a measure of the amount of air pressing down on the earth. This would be highest at the surface of the earth. At 5000 meters, there are 5000 meters of air below you, so that is considerably less air.
What is low atmospheric pressure?
Atmospheric pressure is caused by the weight of the air in the earths atmosphere that is above you. At sea level this pressure is said to be 1 bar or one atmosphere. Now, as you go up a mountain there is less air above you and thus the atmospheric pressure is less and the pressure you experience because of your altitude is said to be your local atmospheric pressure. However, the earths atmosphere is heated by the sun and moves in eddies to the poles where it is cooled and flows back to the equator - this is called the weather. When you have hot air above you it is less heavy than cold air so, as the atmosphere blows over you, the pressure of the air changes and you can work out if the air above you is hot or cold by comparing the measure you measure against your local atmospheric pressure.
To measure pressure above atmospheric pressure you would use a?
mercury manometer
Why is atmospheric pressure greater at sea?
Atmospheric pressure is the weight of the air above the point... at sea level there is more air above the point then there would be at 10,000ft
What instruments are used to measure the atmospheric pressure?
Usually the instrument used is called a barometer- which could be a closed end manometer or an aneroid barometer.An altimeter actually also measures atmospheric pressures - but for a different purpose.
What is atmospheric pressure of oxygen at an elevation of 20000 ft above sea level?
The atmosperic pressure would be about 370 millibar
Why is atmospheric pressure greater at sea level than at the top of a mountain 5000 m above sea level?
Atmospheric pressure is a measure of the amount of air pressing down on the earth. This would be highest at the surface of the earth. At 5000 meters, there are 5000 meters of air below you, so that is considerably less air.
What gauge measures both vacuum and pressure?
Gauge pressure usually refers to the pressure difference between ambient, atmospheric pressure and the pressure in a vessel or line. A gauge pressure of zero would mean that the vessel or line was at atmospheric pressure. Normally the pressures of interest are ABOVE atmospheric so the gauge pressure is positive. Vacuum gauge pressure measures how far BELOW atmospheric pressure a vessel or line is. As such vacuum gauge pressure may be measured as a negative number - or for convenience it may be reported as a positive number with the caveat that it is "vacuum gauge pressure", meaning that the reported pressure is how far atmospheric pressure is above the pressure in the vessel or line.
Why is the atmospheric pressure is lower at the top of a mountain than in a valley?
Atmospheric pressure is the force per unit area exerted against a surface by the weight of air above that surface in the Earth's atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. Similarly, as elevation increases there is less overlying atmospheric mass, so that pressure decreases with increasing elevation. A column of air one square inch in cross-section, measured from sea level to the top of the atmosphere, would weigh just over a stone (and a column one square centimetre in cross-section would weigh just over a kilogram).
What is low atmospheric pressure?
Atmospheric pressure is caused by the weight of the air in the earths atmosphere that is above you. At sea level this pressure is said to be 1 bar or one atmosphere. Now, as you go up a mountain there is less air above you and thus the atmospheric pressure is less and the pressure you experience because of your altitude is said to be your local atmospheric pressure. However, the earths atmosphere is heated by the sun and moves in eddies to the poles where it is cooled and flows back to the equator - this is called the weather. When you have hot air above you it is less heavy than cold air so, as the atmosphere blows over you, the pressure of the air changes and you can work out if the air above you is hot or cold by comparing the measure you measure against your local atmospheric pressure.
Does the atmospheric pressure increase or decrease as you move upward away from sea level?
The pressure will decrease, fall, as your altitude increases. No it would not it would increase above sea level
What is the force excerted by the weight of the air above?
That is the air pressure or amospheric pressure. It is the pressure at any given point in the Earth's atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. Similarly, as elevation increases there is less overlying atmospheric mass, so that pressure decreases with increasing elevation. A column of air 1 square inch in cross section, measured from sea level to the top of the atmosphere, would weigh approximately 14.7 lbf. A 1 m² (11 sq ft) column of air would weigh about 100 kilonewtons, equivalent to a mass of 10.2 tonnes at the surface.
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.
Would a human get smashed if the got on Venus?
A human would be crushed by the intense atmospheric pressure, which is 90 times that of the Earth's atmospheric pressure.
