Value of Stefan-Boltzmann Constant
The value of Stefan-Boltzmann contact in SI units is approximately 5.67 ×10-8 Watt per square meter per Kelvin to the fourth power and other units and the values in other systems of the unit are given as follows:
Unit system | Value of σ | Units |
---|---|---|
SI | 5.670367×10-8 | W/(m2K4) |
CGS | 5.6704 x 105 | erg/(cm2 s1 K4) |
Thermochemistry | 11.7 x 108 | cal/(cm2 day K4) |
U.S. Customary Units | 1.714 x 109 | BTU/(ft2 hr ˚R4) |
The dimension of the Stefan-Boltzmann Constant is [M]1[L]0[T]-3[K]-4, where [M], [L], [T], and [K] are the dimension of mass, length, time, and temperature respectively.
Stefan-Boltzmann Law
Stefan-Boltzmann Law relates the power radiated by the black body to its temperature and surface area. In the study of thermodynamics and astrophysics, the Stefan-Boltzmann Law is widely used to better our understanding of the subject. Other than this, Stefan-Boltzmann Law helps scientists understand the behavior of objects that emit radiation, such as stars and planets. Stefan-Boltzmann Law also has some applications in the real world as well such as, in designing solar panels and other energy conversion instruments.
Table of Content
- What is Stefan-Boltzmann Law?
- Formula for Stefan-Boltzmann Law
- Stefan-Boltzmann Constant
- Value of Stefan-Boltzmann Constant
- Formula for Stefan-Boltzmann Constant
- Black Body Radiation
- Planck’s Law for Black Body Radiation
- Derivation of Stefan-Boltzmann Constant
- Calculation of Stefan-Boltzmann Constant
- Applications of Stefan-Boltzmann Law
- Sample Problems on Stefan-Boltzmann Law