Why Mercury is Used in Barometer
Mercury has many advantages when used as a measuring liquid in a barometer tube. These advantages would be- Mercury does not stick to glass and hence theres very little chance of a stray drop or two of mercury obscuring you.
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In the barometer mercury is used as the barometric liquid.
. Why Is Mercury Used In Barometers. So we cannot replace. Mercury is used in barometers because of its high density.
In the barometer mercury is used as the barometric liquidMercury has high density. The atmospheric pressure at sea level 76cm of Hg 101310 5 Pascal. If we used water instead of mercury it requires a tube of 10 m which makes it inconvenient to use.
1Mercury is more dense. Mercury is used in barometers due to its high density. Why mercury is used in pressure barometer.
Mercury is used in barometers and not water. Mercury has high density. While a barometer using water for instance would need to be 136 times higher column length than a mercury barometer to obtain the same pressure difference.
Its relative density is 13534 times that of water. The atmospheric pressure at sea level 76cm of Hg 101310 5 Pascal. This allows mercury to be used in a small container.
This is because the high density of mercury gives a reasonable height of the column to measure atmospheric pressure. The use of mercury in barometers is a practice that dates back to the 17th century. If you used water for example which has a low density your barometer would have to be.
If you use water you have to have the length of. Because of this property when there is a change in pressure the change in height of the mercury in the barometer tube will be very reasonable. Why dont we use water instead of mercury in barometer.
Explain why water cannot be used in place of mercury in a barometer. The higher the density of a liquid the lower its height. Mercury is employed in the barometer because its density is sufficiently high for a relative short column to be obtained.
Explain why water cannot be used in place of mercury in a barometer. Because mercury is 14 times denser than water it can. Mercury is still used in barometers today because it has several benefits over other materials.
The Science Behind It. Mercury is employed in the barometer because its density is sufficiently high for a relative short column to be obtained. The atmospheric pressure at sea level 76cm of Hg 101310 5 Pascal.
In the barometer mercury is used as the barometric liquidMercury has high density. Mercury has several advantages over water which was why it was preferably used to make the very first barometers a long time ago. By the use of mercury in a barometer the total height of the barometer gets reduced as it has a higher density.
High density scales down the pressure headh to repesent same magnitude of pressure in a tube of smaller. Because of this property when there is a change in pressure the change in height of the mercury in. Why cant we use water instead of mercury in barometer.
Why Mercury Is Used In Barometer. Before moving to our main question lets know about the. Why mercury is used in pressure barometer.
In addition mercury has a relatively lower specific heat than other elements. So we cannot replace. And also because it has very small vapour pressure at normal temperature.
That is if water is used in barometer tube instead of mercury the length of the tube must be greater than 10326 cm. Due to this luminescent property of mercury it can make its measurements stand out clearly. Answer 1 of 33.
By comparison water has a density of 100. That is if water is used in barometer tube instead of mercury the length of the tube must be greater than 10326 cm. Explain why water cannot be used in place of mercury in a barometer.
Because of this property when there is a change in pressure the change in height of the mercury in the barometer tube will be very reasonable. Mercury is used in barometers because when the first barometer was created mercury was shown to move up or down according to the air pressure. In the barometer mercury is used as the barometric liquidMercury has high density.
As well as the mercury has lower vapour pressure thus its molecules never get evaporated into the evacuated portion and hence it increases the accuracy while measurement. Mercury is also a good conductor of heat. Again mercury is a shiny metal that can be easily identified and measured in the barometer tube.
Mercury used barometerBydrreads June 23 2022 Table ContentsWhy Mercury Used Barometer Why mercury used pressure barometer Why mercury used barometric liquid give three reasons Why mercury preferred over water. Here are the four main reasons why mercury is used as pressure fluid in barometers. While there are some drawbacks to using mercury the advantages of this.
And also because it has very small vapour pressure at normal temperatureHigh density scales down the pressure headh to repesent same magnitude of pressure in a tube of smaller height. Why Is Mercury Used In A Barometer. So we cannot replace.
Why is Mercury Metal Used in Barometers. Because of this property when there is a change in pressure the change in height of the mercury in. Why dont we use water instead of mercury in barometer.
That is if water is used in barometer tube instead of mercury the length of the tube must be greater than 10326 cm. So to measure the atmospheric pressure which is 760 mm of mercury you need a barometer with mercury of length slightly more than 076 meter say one meter to cover the special cases of some higher pressure. At 139 gcm2 mercury is the most dense substance to exist as a liquid at room temperature.
Why Mercury is Used in Barometers.
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