Kelvin

The Kelvin unit and its scale, by international agreement, are defined by two points: absolute zero, and the triple point of Vienna Standard Mean Ocean Water (VSMOW).[1] This definition also exactly relates the Kelvin scale to the Celsius scale. Absolute zero-the temperature at which nothing could be colder and no heat energy remains in a substance-is, by definition, exactly 0 K and -273.15

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