a liquid-in-glass thermometer is based on the fact that_____when they are heated and ____when they are cooled
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In the Liquid In Glass Thermometers (LIG) the thermally sensitive element is a liquid contained in a graduated glass envelope. The principle used to measure temperature is that of the apparent thermal expansion of the liquid.When a liquid is cooled to its freezing point, it transitions to its solid state. This process involves a loss of energy in the form of heat. As this happens, the molecules of a compound bond together and the liquid becomes a solid.
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