Spectral Distribution of Total Energy Emitted by a Black Body versus Temperature

This Demonstration plots the monochromatic emissive power of a black body in at user-set values of the temperature (blue curve). The locus of the maximum values of the monochromatic emissive power (red curve) is given by Wien's displacement law:
The Demonstration also displays the value of as well as the total emissive power, (expressed in ), which is given by the Stefan–Boltzmann law:
, where .


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C. J. Geankoplis, Transport Processes and Unit Operation, 3rd ed., Englewood Cliffs: Prentice–Hall, 1993.


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