Which one of the following statements concerning the Stefan-Boltzmann equation is true?
A)This equation applies only to perfect radiators.
B)This equation applies only to perfect absorbers.
C)This equation is valid with any temperature units.
D)This equation describes the transport of thermal energy by conduction.
E)The equation can be used to calculate the power absorbed by any surface.

Question

Quizplus · Accepted Answer

The Stefan-Boltzmann equation can be used to calculate the power absorbed by any surface. It relates the power radiated by a surface to its temperature and emissivity, and applies to all objects (not just perfect radiators or absorbers) that emit thermal radiation. The units of the equation must be in kelvin for temperature and watts per square meter for the radiation emitted.

Which One of the Following Statements Concerning the Stefan-Boltzmann Equation