Thermal expansion is the tendency of matter to increase in size with increasing temperature. Matter generally increases in length, area, and volume, changing its size and density, in response to an increase in temperature (usually excluding phase transitions).
Thermal expansion is the tendency of matter to increase in size with increasing temperature. Matter generally increases in length, area, and volume, changing its size and density, in response to an increase in temperature (usually excluding phase transitions).
Source: Wikipedia "Thermal expansion" · CC BY-SA 4.0
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