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Would a mercury manometer be able to measure a smaller pressure increment then a water manometer?
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoNo, for measuring smaller pressure difference water manometer will be more efficient. This is because the pressure difference is measured in terms of density*g*height difference, so for a fixed pressure difference if density is less (water) then the change in height will be more of the liquid column i.e more easy to note the difference as compared to more dense liquid (mercury), where density is high so the height difference will be low, making the detection of small pressure difference difficult.
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To measure pressure above atmospheric pressure you would use a?
mercury manometer
What happen when mercury used in inverted manometer?
When mercury is used a manometer fluid and the manometer tube is inverted it will measure the small pressure difference in liquids. This is a tool used by scientists.
To measure a pressure above atmospheric pressure you would use?
You would use a mercury manometer
A manometer is used to measure?
an instrument for measuring the pressure of a fluid, consisting of a tube filled with a liquid, the level of the liquid being determined by the fluid pressure and the height of the liquid being indicated on a scale
Why you use mercury manometer to measure atmospheric pressure at sea level rather alcohol?
Mercury has two advantages over alcohol when it comes to measuring pressure in a manometer: 1) it is far denser than alcohol. A column of mercury need only be about 760 mm ( about 3/4 of a meter) high to exert a pressure equal to atmospheric pressure at sea level. Alcohol would have to be over 13 meters high to reach the same pressure! (rather impractical) 2) Mercury has a very low vapor pressure so it doesn't evaporate when exposed to the atmosphere. It also contributes a negligible amount of pressure above the column on the sealed end of the manometer for pretty much any atmospheric temperature. Alcohol has a significant vapor pressure so it would tend to evaporate when exposed to the atmosphere. It also has a high enough vapor pressure that it would contribute a noticeable amount of pressure on the sealed end of the manometer - and the pressure would vary quite noticeably over the range of temperatures that atmospheric manometers are commonly exposed to - so the manometer reading would always have to be corrected for temperature - more so than the mercury manometer must be.
Is manometer used to measure the pressure of liquid?
yes,manometer is an instrument . It is used to measure pressure of liquid.
To measure pressure above atmospheric pressure you would use a?
mercury manometer
What happen when mercury used in inverted manometer?
When mercury is used a manometer fluid and the manometer tube is inverted it will measure the small pressure difference in liquids. This is a tool used by scientists.
To measure a pressure above atmospheric pressure you would use?
You would use a mercury manometer
What is an open arm manometer?
It is a type of manometer, an object used to measure the pressure of different things, and the open armed manometer allows for the atmospheric pressure in the tube of the manometer. So the sample gas pressure pushes on the mercury that is already being pushed on by the atmospheric pressure. Then you add the atmospheric pressure to the change in the mercury (in mm) and that gives you your pressure. It's like a tire gauge.
What has a glass tube with the open end submerged in liquid mercury?
A manometer. Used to measure pressure.
How do you use a manometer?
A manometer is a device that is used to measure the pressure of a fluid. The U-shaped glass tube is partially filled with a liquid, usually mercury. The difference between the height of the mercury corresponds to the difference between the pressure of the fluid in the container and the atmospheric pressure.
How does a mercury pressure device work?
A sphygmomanometer is also known as a mercury pressure device. It works by a mechanical manometer made of mercury that measures the pressure.
A manometer is used to measure?
an instrument for measuring the pressure of a fluid, consisting of a tube filled with a liquid, the level of the liquid being determined by the fluid pressure and the height of the liquid being indicated on a scale
What is the instrument used to determine air pressure is called?
The instrument used to determine air pressure is called a barometer. A simple barometer is a long glass tube filled with mercury that it turned upside down into another container filled with mercury.
A sphygmomanometer is a?
A sphygmomanometer is medical device that is used to measure the blood pressure of a person. It consists of a cuff that can be inflated to stop the blood flow and mercury meter or manometer that is used to measure the blood pressure. It is commonly used along with the stethoscope. It was invented by Samuel Siegfried Karl Ritter von Basch in 1881.
Why you use mercury manometer to measure atmospheric pressure at sea level rather alcohol?
Mercury has two advantages over alcohol when it comes to measuring pressure in a manometer: 1) it is far denser than alcohol. A column of mercury need only be about 760 mm ( about 3/4 of a meter) high to exert a pressure equal to atmospheric pressure at sea level. Alcohol would have to be over 13 meters high to reach the same pressure! (rather impractical) 2) Mercury has a very low vapor pressure so it doesn't evaporate when exposed to the atmosphere. It also contributes a negligible amount of pressure above the column on the sealed end of the manometer for pretty much any atmospheric temperature. Alcohol has a significant vapor pressure so it would tend to evaporate when exposed to the atmosphere. It also has a high enough vapor pressure that it would contribute a noticeable amount of pressure on the sealed end of the manometer - and the pressure would vary quite noticeably over the range of temperatures that atmospheric manometers are commonly exposed to - so the manometer reading would always have to be corrected for temperature - more so than the mercury manometer must be.
