Answer:
the total radiant heat power
Explanation:
The Stefan-Boltzmann law states that the total radiant heat power emitted from a surface is proportional to the fourth power of its absolute temperature.
[tex]E=\sigma T^{4}[/tex]
where E is the power from a unit area, T is the absolute temperature and the Greek letter sigma (σ) representing the constant of proportionality, called the Stefan-Boltzmann constant. In SI units, this constant has the value [tex]5.670374419 * 10^{-8} \frac{W}{m^{2} K^{4} }[/tex].
The law applies only to blackbodies, theoretical surfaces that absorb all incident heat radiation.