what is mecury and examples , in thermometers
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Mercury is the only metal that is in liquid state at room temperature. It is used in thermometers because it has a high coefficient of expansion which makes it easy to move in the thermometers as per the temperatures. Mercury has a boiling point which makes it suitable to measure higher temperatures.
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thermometer consisting of mercury contained in the bulb at the bottom of graduated sealed glass capillary tube marked in degrees Celsius eg: liquid-in-gas thermometer
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