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Thermal Physics · heat transfer

Stefan–Boltzmann Law

Gives net radiative power exchange for an idealized radiating surface.

P = εσA(T⁴ − T₀⁴)

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Variables

P
net radiative powerW
ε
emissivity
σ
Stefan–Boltzmann constantW/(m²·K⁴)
A
surface aream²
T, T₀
absolute temperaturesK

Conditions / notes

Uses absolute temperatures and an idealized radiative exchange.

Reference details

Subject
Thermal Physics
Topic
heat transfer
Plain text
P = epsilon sigma A (T^4 - T0^4)

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