# Absolute Temperature

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Absolute temperature, abbreviated as $$T_a$$, also called thermodynamic temperature, is measured from the starting point of 0, where zero is the coldest theoretically attainable temperature in nature.  It is the lowest temperature possible and contains no heat energy in the substance.  Absolute temperature is directly related to Zeroth Law of Thermodynamics.