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It changes volume at different tempuratures, changing a noticable amount due to a small change in temperature.
Basicaly I eman that it's not gona increase in volume like 0.01% or something with a change in temperature of like 30 degrees celcius, for example. It changes enough in volume that you can tell (if the thermometer is marked) if the temperature changes one or two degrees.
Mercury is also useful because it is a liquid, so when it expands, it will simply move up the the tube.
I don't know what any more are, maybe it's cheap or something, I have no idea, or maybe it's because it's not transparent.
answer 2 a) Mercury is liquid at the usual temperatures of interest to us.
b) Mercury has a good coefficient of expansion, so the change in the length of the capillary is perceptible.
c) mercury is relatively affordable
d) since it is opaque, it is easy to see the capillary.
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How are thermometer made?
It generally made using fluid which expand or contract linearly with temperature such as mercury, water or alcohol. Electronic thermometer use the relation of thermal property effect electrical conduction difference to measure temperature.
What are some advantages of using mercury thermometers?
mercury has better thermoconductiity and they have a greater range of readings
Why did they change the liquid in the thermometers?
A thermometer (from the Greek θερμός (thermo) meaning "warm" and meter, "to measure") is a device that measures temperature or temperature gradient using a variety of different principles. A thermometer has two important elements: the temperature sensor (e.g. the bulb on a mercury thermometer) in which some physical change occurs with temperature, plus some means of converting this physical change into a value (e.g. the scale on a mercury thermometer). Thermometers increasingly use electronic means to provide a digital display or input to a computer.
What does a thermometer measure and how does it do it?
A thermometer is a device that measures temperature or temperature gradient using a variety of different principles. The word temperature comes from the Greek work thermo which is heat and meter to measure.
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 the advantages using mercury in thermometer?
it expands at constant rate and has got high boiling point.
What is the raw experimental measurement made when using mercury thermometer?
Using a thermometer we can measure the temperature.
Why is thermometer usually shakes before using?
It isn't necessary with new electronic thermometers, but if you still have an old hold-under-your-tongue-for-three-minutes mercury thermometer, the mercury will remain at the last recorded temperature until it is shaken back into the reservoir.
Who invented the mercury and alcohol thermometers?
Daniel Gabriel Fahrenheit invented the mercury thermometer. Ferdinand II invented a thermometer using alcohol but it was very inaccurate.
How many minutes do you take a rectal temperature?
If using a mercury thermometer - about a minute. A digital thermometer - a few seconds.
Why you are using mercury in thermometer?
It has a reaction to temperature, so it'd be perfect for measuring it!
What are the advantage of using Mercury in thermometer?
it can be easily seen it gets hot quickly it expands fast.. this is the advantage of mercury in thermometers..
What are three ways of taking a vital temperature?
Three ways of taking a vital temperature are using a digital thermometer orally, using a tympanic thermometer in the ear, or using a temporal artery thermometer on the forehead.
What is the advantage and disadvantage of using alcohol in thermometer?
u don't have to flick the thermometer to reset the temperature reading when you use an alcohol based thermometer (unlike a mercury thermometer where you have to flick and flick and flick flick flick that thermometer for the mercury to be reset so that you can make an accurate reading) a disadvantage is that the alcohol thermometer is slightly less acurate The biggest advantage is that alcohol is not nearly as toxic as mercury, so that if the thermometer breaks, you won't be poisoned.
How are thermometer made?
It generally made using fluid which expand or contract linearly with temperature such as mercury, water or alcohol. Electronic thermometer use the relation of thermal property effect electrical conduction difference to measure temperature.
What precautions should be taken when using mercury base thermometer?
don't break it. If you do open the windows.
What are some advantages of using mercury thermometers?
mercury has better thermoconductiity and they have a greater range of readings
