In what units is temperature expressed?

Currently, three temperature scales are widely used in the world: absolute and two relative (Celsius and Fahrenheit scales).

Absolute scale – its zero coincides with absolute zero, the unit of measurement is Kelvin (K);

The Celsius scale is a relative scale in which the freezing and boiling points of water at normal pressure are taken as reference points (0 and 100, respectively). The unit of measurement is degrees Celsius (° С).

The Fahrenheit scale is a relative scale in which the self-sustaining temperature of a mixture of ice, water and ammonium chloride and the temperature of the human body (0 and 98, respectively) are taken as reference points. The unit of measurement is degrees Fahrenheit (° F).

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