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Additional
absolute zero
English Wikipedia - The Free Encyclopedia
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Absolute zero
Absolute zero
is the lower limit of the
thermodynamic temperature
scale, a state at which the
enthalpy
and
entropy
of a cooled
ideal gas
reaches its minimum value, taken as 0. The theoretical temperature is determined by extrapolating the
ideal gas law
; by international agreement, absolute zero is taken as -273.15° on the
Celsius
scale (
International System of Units
), which equates to -459.67° on the
Fahrenheit
scale (
United States customary units
or
Imperial units
). The corresponding
Kelvin
and
Rankine
temperature scales set their zero points at absolute zero by definition.
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