ESS200A
Prof. Jin-Yi Yu
Stefan-Boltzmann Law
qThe single factor that determine how much energy is emitted by a blackbody is its
temperature.
qThe intensity of energy radiated by a blackbody increases according to the fourth
power of its absolute temperature.
qThis relationship is called the Stefan-Boltzmann Law.
E
= sT4
E = radiation emitted in W/m2
s= 5.67 x 10-8 W/m2 * K *sec
T = temperate (K)