what is thermometer? write the reasons of using mercury in the thermometer.
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Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
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It is a device which is used for measuring temperature and there are 3 type of thermometer
Digital laboratory and chemical
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