Water Thermometer
Water Thermometer
can someone plz explain how one can use the boiling and freezing points of water to calibrate a thermometer?
can someone plz explain how one can use the boiling and freezing points of water to calibrate a thermometer?
The liquid in a thermometer expands as it is heated and contracts when it is cooled. There are two easily reproduced temperatures involving pure water at atmospheric conditions. Water freezes at 32F (0C) and boils at 212F (100C). The temperature will remain very stable while water freezes or boils and the liquid column can be observed at those two points during a calibration test. Other techniques are used for thermometers that have a lesser range.
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