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Why water is not used as the medium for measurement of atmospheric pressure?
Wiki User
∙ 15y ago
Purely a matter of convenience. A water barometer is entirely feasible, but the column height at normal atmospheric pressure is over 32 feet tall. In order to make the barometer more compact, it's convenient to use the heaviest available liquid. Mercury has a little more than 13 times the density of water, so the column height in a mercury barometer is only about 30 inches tall, making for a much more manageable instrument.
Wiki User
∙ 15y ago
Water is not used as the medium for measurement of atmospheric pressure because it is not practical for high-precision measurements due to its relatively low density and high vapor pressure at room temperature. Mercury is commonly used because it has a high density, low vapor pressure, and does not wet glass, allowing for accurate and consistent measurements to be taken.
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How do you calculate total pressure of water?
The total pressure of water is calculated by adding the atmospheric pressure to the pressure due to the depth of the water column using the formula: total pressure = atmospheric pressure + (density of water × acceleration due to gravity × depth of water).
Is sound produced when there are increases in pressure or oscillations in pressure?
Yes, sound is produced when there are changes in pressure that cause the particles in a medium to oscillate. The pressure variations create sound waves that travel through the medium, such as air or water, and are detected by our ears as sound.
What is the difference between atmosphere pressure and water pressure?
Atmospheric pressure is the pressure exerted by the weight of the atmosphere above a given point, while water pressure is the force exerted by water on an object or surface due to the depth of the water. Atmospheric pressure decreases with altitude, while water pressure increases with depth.
What C does water boil under normal atmospheric pressure?
Water boils at 100 degrees Celsius under normal atmospheric pressure.
Can Celsius measure heat?
Yes, Celsius is a unit of measurement used to quantify temperature. It is based on the boiling and freezing points of water at standard atmospheric pressure.
What does it mean 30.77 psg?
30.77 psg means the medium (air, water, ...) pressure is 30.77 pound per square inch above atmospheric pressure.
What is the scale of celsius?
It is a scale for temperature measurement where zero degree is freezing temperature for water and 100 is its boiling point under atmospheric pressure.
How are atmospheric pressure and water pressure different?
Atmospheric pressure is the force exerted by the weight of the air in the atmosphere, while water pressure is the force exerted by the weight of water in a body of water. Atmospheric pressure decreases with altitude, while water pressure increases with depth. Atmospheric pressure is measured in units like atm or pascals, while water pressure is typically measured in units like pounds per square inch (psi) or pascals.
How do you calculate total pressure of water?
The total pressure of water is calculated by adding the atmospheric pressure to the pressure due to the depth of the water column using the formula: total pressure = atmospheric pressure + (density of water × acceleration due to gravity × depth of water).
Is sound produced when there are increases in pressure or oscillations in pressure?
Yes, sound is produced when there are changes in pressure that cause the particles in a medium to oscillate. The pressure variations create sound waves that travel through the medium, such as air or water, and are detected by our ears as sound.
What is the difference between atmosphere pressure and water pressure?
Atmospheric pressure is the pressure exerted by the weight of the atmosphere above a given point, while water pressure is the force exerted by water on an object or surface due to the depth of the water. Atmospheric pressure decreases with altitude, while water pressure increases with depth.
What happens when pressure greater than atmospheric pressure is applied to pure water or a solution?
When pressure greater than atmospheric pressure is applied to pure water or a solution, the boiling point of the water/solution will increase. This means that the liquid will need to reach a higher temperature before it boils. Conversely, if the pressure decreases below atmospheric pressure, the boiling point will decrease, requiring a lower temperature for boiling to occur.
What is cause of atmospheric pressure?
Just as water pressure is caused by the weight of water, atmospheric pressure is caused by the weight of the air. Pg. 126 Conceptual Physical Science 4th Edition.
What are the different types of pressure feet?
water for example.absolute pressure; gauge pressure; atmospheric pressure
What C does water boil under normal atmospheric pressure?
Water boils at 100 degrees Celsius under normal atmospheric pressure.
Why is it different at 5000 feet to boil water?
The atmospheric pressure is lower. When you are boiling the water, the water's vapour saturation pressure is able to match the atmospheric pressure faster therefore it boils faster and at a lower temperature.
What is potential pressure?
the pressure of water measured relative to the atmospheric pressure at the same elevation.
