Absolute temperature

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Absolute temperature is the temperature of an object on a scale where 0 is taken as absolute zero. Absolute temperature scales are Kelvin (degree units Celcius) and Rankine (degree units Fahrenheit).

Absolute zero is the temperature at which a system is in the state of lowest possible (minimum) energy. As molecules approach this temperature their movements drop towards zero. It is the lowest temperature a gas thermometer can measure. No electronic devices work at this temperature.

Common temperatures in the absolute scale are:

To convert from the Celsius scale into the absolute temperature, you add 273.16 and change °C to K. To get a temperature on the absolute scale to the Celsius scale, subtract 273.16 and change K to °C. This is normally used in the science world.


Celsius to Kelvin: K=C+273

Kelvin to Celsius : C=K-273