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It is used in the barometer because it is the densest liquid known, requiring only 33 inches of Mercury to indicate atmospheric pressure. Water on the other hand would require 39 feet to indicate the same pressure.
It is used in thermometers for a different reason. The expansion of mercury is a stable amount. Meaning it changes in volume the same amount from 0 to 1 degrees as it does in volume from 100 to 101 degrees, making it a desirable fluid for scaling thermometers.
Presently in the US it is illegal to manufacture these devices using mercury.
What else can I help you with?
What is the name of the liquid in a thermometer?
The red liquid in a liquid-in-glass thermometer is mineral spirits or ethanol alcohol mixed with red dye. A grey or silver liquid inside the thermometer is mercury. Mercury thermometers are not used anymore due to the dangers associated with mercury.
What are the two substances used in a liquid column thermometer?
The two substances used in a liquid column thermometer are mercury and alcohol. Mercury thermometers use mercury as the liquid inside the glass tube, while alcohol thermometers use colored alcohol such as ethanol or dyed ethanol.
Is it a solid liquid or gas found in a thermometer?
Actually anything that won't freeze or boil at the operating range of the thermometer. The most common are mercury and alcohol.
What is the name of the liquid in which thermometer is dipped?
The liquid in which a thermometer is typically dipped is called mercury. Mercury is commonly used in old-style thermometers, but newer thermometers may use alcohol or other liquids instead.
What is the coloured substance used in thermometer?
The colored substance commonly used in a thermometer is typically either dyed alcohol or a non-toxic organic liquid like mercury. These substances expand and contract with changes in temperature, allowing the thermometer to measure temperature variations.
What is in a thermometer and a barometer?
A thermometer measures temperature - most are now electric but they used to have alcohol or mercury in them. A barometer measures air pressure - they are now electric but used to have air in them (in a bellows with a spring).
How a barometer can be used to measure the vapor pressure of a liquid?
A mercury thermometer, that is a barometer can be used to measure vapor pressure. Initially, a proper temperature must be recorded. Then the liquid should be injected into the mercury column. This new measurement subtracted from the original will yield the vapor pressure of a liquid.
Which liquid is used in an aneroid barometer a mercury b alcohol c none?
mercury
What are the two liquid used in the thermometer?
iodine and Mercury
What element is often used as the liquid of thermometer?
Mercury
What liquid metal is most commonly used in thermometer?
The liquid metal in many thermometer is mercury (Hg).
What element is used in a barometer?
Barometers can use any liquid. A dense liquid that makes for a short column at room temperature, is mercury.
What kind of liquid is found in a barometer?
Mercury is the liquid typically found in a barometer. It is used to measure atmospheric pressure due to its density and ability to rise and fall within the tube as pressure changes.
What is the name of the liquid in a thermometer?
The red liquid in a liquid-in-glass thermometer is mineral spirits or ethanol alcohol mixed with red dye. A grey or silver liquid inside the thermometer is mercury. Mercury thermometers are not used anymore due to the dangers associated with mercury.
What is the mercury called on a clinical thermometer?
The liquid in a clinical thermometer is called mercury. It is used to measure body temperature by expanding and rising within the thermometer.
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 are the two substances used in a liquid column thermometer?
The two substances used in a liquid column thermometer are mercury and alcohol. Mercury thermometers use mercury as the liquid inside the glass tube, while alcohol thermometers use colored alcohol such as ethanol or dyed ethanol.
