What are the charastics feature of Mercury in a 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's liquid at room temperature, it can measure body temperature of human body
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