0
What is the standard sea level pressure in millimeters of mercury?
Wiki User
∙ 8y ago
Standard air pressure at sea level is 1 atmosphere, or 1 atm. This is the adopted standard atmosphere value, but sea level pressure will not always equal to this value due to changes in weather.
1 atm = 101 325 pascals = 1.01325 bars.
Walter Carter
Wiki User
∙ 12y agoThe standard atmospheric air pressure at sea level is 101325 Pa = 1013.25 hPa (Hectopascal) = 1.01325 bar = 1013.25 mbar .
Wiki User
∙ 12y agoWiki User
∙ 7y agoThe standard pressure is 760 torr or 760 millimetres of mercury.
Wiki User
∙ 10y ago1013 mb
1013 millibars
Wiki User
∙ 8y agoThhis pressure is 760 mmHg.
Wiki User
∙ 7y agoIt is 760 mm of mercury.
Wiki User
∙ 13y ago29.92
Add your answer:
Earn +20 pts
What is equivalent to 101.325 kpa?
It is the standard atmospheric pressure at sea level. It is equal to 1 atm.
A compound pressure gauge for the low side of the system measures pressure in what?
A compound pressure gauge measures two scales, one in positive pressure and one in negative (below atmospheric) pressure or vacuum positive pressure is measured in pounds per square inch (psi) or kilopascals or in some cases bars (1 bar = 14.35 psi) [ the average atmospheric pressure at 1000 feet above sea level] vacuum is measured in millimeters of mercury mmHg or inches of mercury inHg
Standard air pressure?
1 atmosphere, at sea level.
Why you observed 1 ATM pressure at sea level?
Because that is the definition of 1 atmosphere at standard temperature.
Describe how a mercury barometer measure air pressure?
The basic principle of barometer is Torricelli's experiment. Imagine that you fill a tube of one metre length (100cm) with mercury up to the brim. Then close the mouth of the tube with your thumb and invert the tube and place it in a cistern of mercury with its end immersed in the mercury say some 4 cm. Now you remove your thumb. Mercury would come down but it stops at one level to our astonishment. This level would be some 20 cm from the closed end of the tube. So there will be almost 76cm column of mercury in the tube. Why is it so? As mercury comes down the space left vacant will not be having any air molecule and so it is almost vacuum. This is named as Torricelli's vacuum. Now the air outside in the atmosphere would exert a pressure and wants to push the mercury towards this vacuum place. But the weight of the mercury column (76cm) will balance this pressure. Hence we say the atmospheric pressure will be 76 cm of mercury. This is how we have mercury scale for measuring the pressure. Usually pressure is defined as the force per unit area. Hence the unit will be N/m2 or pascal. But we give pressure only in cm or mm of mercury. The reason is explained properly. Same technique is applied in Fortin's barometer and vernier arrangement is made to measure the pressure so accurately.
What is the air pressure at sea level in millimeters of mercury?
standard pressure is 760 mm Hg.
The standard sea level pressure is?
A standard atmosphere, denoted by the symbol atm, is a unit of pressure measurement equal to 101,325 pascals, 760 millimeters of mercury, 29.9212 inches of mercury, or 14.696 pounds per square inch. The relationship between atmospheric pressure change and height above the earth's surface
Barometric pressure ground level?
Atmospheric pressure varies with altitude and air density. Average sea-level pressure is 101.325 kPa (1013.25 mbar) or 29.921 inches of mercury (inHg) or 760 millimeters of mercury (mmHg).
What do aneroid barometers use for the unit of measure?
There are a lot of possible units. Many TV stations report pressure in inches of mercury, where standard sea level pressure = 29.92 inHg. You can also use millimeters of mercury, which is a simple conversion from inches of mercury (1 inch is about 25.4 mm). Atmospheric scientists usually use hectoPascals (hPa) or millibars (mb), which are the same numerically. Standard sea level pressure is 1013.25 hPa, or 1013.25 mb. 1 hectoPascal is equal to 100 Pascals, while 1 millibar is one-thousandth of a bar. A couple of less common units are Torrs, where sea level pressure is 760 Torr, or atmospheres, where standard sea level pressure = 1 atmosphere.
What is the partial pressure of CO2 in the arterial and venous blood?
The normal partial pressure of oxygen in arterial blood is 75-100 millimeters of mercury. In comparison the partial pressure of oxygen at sea level is 750 millimeters of mercury.
What are the three unit of pressure equal to atmospheric sea level?
A not-commonly-used measurement is 'atmosphere'. One atmosphere is the average pressure at sea-level: 101.325 kPa, 1013.25 mbar, 29.921 inches of mercury (inHg) or 760 millimeters of mercury (mmHg).
What is the standard unit for measuring blood preassure?
The blood-pressure numbers are in units of mm-Hg. That's the pressure at the bottom of a column of mercury that's that many millimeters tall. For a comparison, a typical healthy systolic pressure may be 120. On exactly the same scale and in the same units, the Earth's atmospheric pressure at sea level is 760 . If your blood pressure were 760, it wouldn't be for long, because you would most likely explode.
Standard sea level pressure (1 ATM) in millibars is?
Standard air pressure at sea level is 760 millibars.
What does weather inches in pressure mean?
Air pressure measured in inches of mercury indicates the level to which a column of mercury rises after being set to a standard pressure initially. One end of the bent mercury tube is closed off, preserving the pressure that existed at the time the tube was closed. Changes in the level of mercury on the other side of the tube reflect changes in air pressure.
When the height of the mercury in a barometer is 29.92 inches the barometric pressure is?
The standard sea level pressure of Earth's atmosphere - a pressure of 1 Bar or one "atmosphere".
What device did Evangelista Torricelli invent to measure atmospheric pressure?
Evangelista Torricelli is known for his invention of the barometer in 1643. His original device consisted of a long tube of glass (which contained a vacuum) on top of a larger container of mercury. The pressure from air pressing down onto the exposed surface of the mercury would push the mercury upwards into the tube; thus, the higher the air pressure, the higher the mercury level. Air pressure was then measured using "millimeters of mercury", which corresponded to the mercury level within the tube.
When air pressure decreases the mercury in a barometer?
The mercury rises. The lower atmospheric pressure allows the mercury to drop in level.
