Absolute Zero

This is the lowest possible temperature for any substance -273.15°C or 0 Kelvin, 0 Rankine. Electrons stay in motion and bonds continue to vibrate even at absolute zero because of zero point energy.

Absolute zero may be interpreted as the temperature at which the volume of a perfect gas vanishes or, more generally, as the temperature of the cold source which would render a Carnot cycle 100 percent efficient. The value of absolute zero is now estimated to be - 273.15° Celsius, -459.67° Fahrenheit, 0 Kelvin, and 0 Rankine.

See also: Kelvin, Zero Point Energy.

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Subjects: Thermodynamics