Radiation

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Boltzmann Constant

 , where:

kB = Boltzmann Constant (J/K)

R = Universal Gas Constant (J/(K*mol))

NA = Avogadro Constant (1/mol)

Euler's Number

Euler's Number, often simply referred to as "e", is a key constant in mathematics, with numerous applications.  The formula which formally defines it is the limit as n approaches infinity of the equation below.

 , where:

e = Euler's Number

Planck Constant

 , where:

h = Planck Constant (J*s)

Planck's Law

 , where:

I = Specific Radiative Intensity ((W*s)/(m2*sr))

h = Planck Constant (J*s)

 = Frequency (Hz)

c = Speed of Light (m/s)

e = Euler's Number

k = Thermal Conductivity (W/(m*K))

T = Temperature (K)

Radiative Power

 , where:

P = Radiative Power (W)

 = Stefan-Boltzmann Constant (W/(m2*K4))

A = Area of Radiation (m2)

T = Temperature (K)

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