Transmittance for gases in Beer-Lambert law (given cross section,distance,density)

Formula

Transmittance for gases in Beer-Lambert law (given cross section,distance,density) formula
T
transmittance for gases in Beer-Lambert law
sigma
cross section of light absorption by a single particle
l
the distance the light travels through the material (i.e. the path length)
N
the density (number per unit volume) of absorbing particles

Formula description

Beer-Lambert law states that there is a logarithmic dependence between the transmissivity of light through a substance and the product of the absorption coefficient of the substance and the distance the light travels through the material.

Calculator (how to use calculator?)

Transmittance for gases in Beer-Lambert law (given cross section,distance,density) formula
sigma
l
N
T
Precision

Formula code

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References

  1. Wikipedia: Beer-Lambert law.

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