What is the meaning of temperature?

Temperature is a physical property of matter that quantitatively expresses hot and cold. 

It is the manifestation of thermal energy, present in all matter.

It is the source of the occurrence of heat, a flow of energy when a body is in contact with another that is colder.

Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have used various reference points and thermometric substances for definition. 

The most common scales are

• the Celsius scale (denoted °C), 

• the Fahrenheit scale (denoted °F), and 

• the Kelvin scale (denoted K).

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Updated on: 10-Oct-2022

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