Question

The value of stefan constant find the value of cgs

Answer 1

The value of the Stefan–Boltzmann constant is given in SI units by

σ = 5.670367(13)×10−8 W⋅m−2⋅K−4.[5]
In cgs units the Stefan–Boltzmann constant is:

σ ≈ 5.6704×10−5 erg cm−2 s−1 K−4.
In thermochemistry the Stefan–Boltzmann constant is often expressed in cal cm−2 day−1 K−4:

σ ≈ 11.7×10−8 cal cm−2 day−1 K−4.
In US customary units the Stefan–Boltzmann constant is:[6]

σ ≈ 1.714×10−9 BTU hr−1 ft−2 °R−4.