why is mercury is used in a thermometer
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Explanation:
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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Answer:
As mercury is a substance that changes it form(like liquid to solid,solid to liquid) it is the best substance to use in a mercury/clinical thermometer
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