Question

(vii) SI unit of Stefan’s constant is​

Answer 1

Answer:

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.

Answer 2

Answer:

σ ≈ 1.714×10−9 BTU⋅hr−1⋅ft−2⋅°R−4.