Give 3 reasons why is mercury used as indicator in thermometer
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61
Most metals are good conductors of heat and they are solids at room temperature. 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.
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14
Answer:
- it is shining
- it is not stick on wall of tube of thermometer
- it has high boiling point and freezing point
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