The expression W = ε σT4 is called

The expression W = ε σT4 is called

Right Answer is:

Fourier equation

SOLUTION

The Stefan–Boltzmann law, also known as Stefan’s law, states that the total energy radiated per unit surface area of a black body in unit time (known variously as the black-body irradiance, energy-flux density, radiant flux, or the emissive power), is directly proportional to the fourth power of the black body’s thermodynamic temperature T (also called absolute temperature).

The expression W = ε σT4 is called Stefan-Boltzmann equation

W = ε σT4

where

W = Radiate Energy

ε =  emissivity

σ = Stefan constant

T = Temperature

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