How mercury functions in a thermometer?


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2012-10-01 12:09:53
2012-10-01 12:09:53

Mercury, like most substances, expands when it gets hotter and contracts when it gets colder. A mercury thermometer is designed so that the volume of the mercury can be accurately observed, as the mercury rises or falls in a marked column.

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A mercury thermometer is used to measure temperature.

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

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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.

Clinical thermometer use mercury to measure temperature. Digital thermometer do not use mercury to measure.

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Temperature affects the amount the mercury is spread out. Heat causes most liquids to expand, which is how a thermometer works. As heat around the glass protecting the mercury of the thermometer rises, the mercury expands and covers more room in the thermometer.

A mercury thermometer measures the temperature by the amount that the mercury expands with a high temperature and contracts with low temperatures.

mercury is element #80 on the periodic table of element. If the mercury inside a thermometer isn't pure, it will not provide a very accurate reading. Therefor, the mercury in a thermometer is an element, not a compound.

The mercury thermometer was invented Daniel Gabriel Fahrenheit in 1714.

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

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