Why is mercury or alcohol used in a thermometer
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Answer:
There is a technical reason for using mercury in clinical thermometers. Mercury has a greater coefficient of thermal expansion than alcohol. This means a column of mercury will expand and rise more than a column of alcohol for the same temperature change.
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Explanation:
mercury is only metal which is liquid in room temperature,it used in thermometer because it has high coefficient expansion.it also has high boiling point which make is suitable to measure temperature.
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