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33 Science -- Heat

What is a laboratory thermometer?

What is a laboratory thermometer?

The thermometer that is used in labs having the range from -100C to 1100C is called a laboratory thermometer.

It consists of a thick-walled capillary made up of glass in which one end is closed and its other end has a cylindrical bulb. This bulb and a small portion of the capillary is filled with pure mercury. The air from the tube is completely taken out before closing the upper end. The vacuum created brings easiness in the labeling of temperature.

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