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Why the mercury can not rise in a lab thermometer if there is air in the glass tube?
Mercury does not rise in a lab thermometer if there is air in the glass tube because the presence of air creates pressure within the tube that opposes the expansion of the mercury. Without a vacuum, the air pressure prevents the mercury from moving freely up the tube in response to changes in temperature.
Does mercury stay in the tube or escape into the air?
Mercury stays contained in the tube of a mercury thermometer when in use. It does not escape into the air as long as the thermometer is intact. However, if the thermometer is broken or improperly disposed of, mercury vapor can be released into the air, which is harmful to health.
Does mercury only stick to gold?
No, mercury can also stick to other metals such as silver, copper, and zinc. Mercury forms an amalgam with these metals, meaning it can chemically bond with them to create a new compound.
Why substance stick to the test tube?
The ability of a substance to stick on inside part of a test tube depends on its surface tension, that's why substances such as water can stick to a window. And the other reason for sticking of a substance to the test tube could be that the test tube itself is dirty, thus the dirt particles hold the substance in place.
Is mercury in any devices always in a capillary tube?
No, mercury is not always contained in a capillary tube. It can be found in devices like thermometers, barometers, and some electrical switches where it is used due to its unique properties, such as being a liquid at room temperature. Mercury can also be found in other forms in devices, such as sealed containers or as a component in some medical instruments.
How do you change a oil dip stick tube?
how do u change the oil dip stick on a 1999 mercury mystiqe
Where do you refill the transmission fluid on a standard 2000 Mercury Cougar?
Dip stick tube
Where do I put transmission fluid on 2001 Mercury Cougar?
I heard that you pour it into the tube that holds the dipstick where you ckeck the transmission fluid. They said use a funnel and pour it in the tube the stick goes in.
What pushes Mercury up in a tube of a Mercury barometer?
That depends on the 'tube' involved. In a thermometer the mercury expands and contracts within a sealed tube as the temperature is raised or lowered. In a barometer there is a reservoir of mercury which the atmosphere presses on. This maintains the mercury in a column which is sealed at the top. Increases in atmospheric pressure push the mercury further up the tube, decreases let it drop down the tube.
What pushes mercury up a tube in a mercury barometer?
the air off of Mercury has a big tube in the inside of it and it pushes in up
Why mercury falls in capillary tube?
Mercury falls in a capillary tube due to the combination of capillary action and gravity. Capillary action is the tendency of a liquid to be drawn up into a narrow tube against the force of gravity. When the adhesive forces between the mercury and the walls of the capillary tube are greater than the cohesive forces within the mercury, the mercury will move downward in the tube.
How is a mercury barometer construct?
A mercury barometer consists of a tall glass tube filled with mercury inverted into a container of mercury. The mercury in the tube will fall until the weight of the mercury column is balanced by the atmospheric pressure pushing down on the surface of the mercury in the container. The measurement is then taken from the height of the mercury column in the tube.
Why does mercury not flow down when the mercury thermometer is held upside down?
Mercury is a dense liquid at room temperature, so gravity is not strong enough to overcome the surface tension and adhesion forces holding it in place inside the thermometer tube. This allows the mercury to "stick" to the walls of the tube and not flow down when the thermometer is turned upside down.
Where do you add transmission fluid on a 1997 Mercury Villager?
From the transmission fluid level dip stick. Remove the stick, use a funnel (the tube is very small, about 1/2 inch diameter), fill in the ATF
How do you replace orifice tube on 2005 mercury marquis is?
How do you replace the orifice tube on a 2000 Mercury Marquis
What is an instrument that measures changes in air pressure using liquid mercury?
Any liquid can actually be use in a tube (barometer) to measure air pressure, but there are various advantages in using mercury for the purpose. 1. Mercury is a shiny liquid (a liquid metal) so it can be easily seen through the glass tube. Other liquid like water are transparent. 2. Mercury is very heavy. So only 76cms of it rises in the tube. Had you been using water for the purpose, you would need a glass tube as long as 55ft. 3. Mercury does not stick to the glass surface inside, so the reading obtained is much more accurate and precise. Remember: Water droplets stick to glass.
What is the construction of mercury thermometer?
A typical mercury thermometer consists of a glass tube with a bulb at one end filled with mercury. As the temperature changes, the mercury expands or contracts, causing it to rise or fall in the tube. The temperature is then read based on the level of the mercury within the graduated scale on the tube.
