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It's used in thermometers because it has high coefficient of expansion.

also it's the only metal in a liquid state.

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Q: Why does the thermometer fill with mercury?
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Related questions

The function of a Mercury thermometer?

to tell old people that have a mercury thermometer what the temperature is


What is Mercury thermometer use to measure?

A mercury thermometer is used to measure temperature.


Mention any two points of difference between a clinical thermometer and an ordinary mercury thermometer?

A clinical thermometer will offer more precise calibrated readings than a mercury thermometer. The range of measurable temperature differs between a clinical and a mercury thermometer with the mercury thermometer having the wider range.


What Fahrenheit used to fill his thermometer?

Mercury. Dangerous, but effective. Thermometers these days (if they use liquid at all) generally use alcohols.


What is the liquid in thermometer's called?

Mercury the liquid inside thermometer is mercury.. but it is called thermometric liquid.


Who invented the modern mercury thermometer and when?

The mercury thermometer was invented Daniel Gabriel Fahrenheit in 1714.


When a mercury-based thermometer is invented?

The mercury thermometer was invented Daniel Gabriel Fahrenheit in 1714.


Why does the Mercury in a thermometer appear red?

If the liquid in a thermometer is red it is not mercury, it is alchohol which has been colouired.


Which thermometer is most suitable for measuring boiling point of water mercury or alcholic thermometer?

Which thermometer is most suitable for measuring boiling point of water mercury or alcoholic thermometer


Which thermometer is a greater health hazard if it breaks Is it the mercury in glass or alcohol in glass thermometer?

Mercury is poisonous.


What is the liquid in the ball of the thermometer?

the liguid inside the thermometer is Mercury.


What is the most dangerous thermometer if it breaks?

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