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pressure integral

(integral relating pressure to a gas's characteristics)

The pressure integral relates a gas's pressure to particle momenta and density.

        ∞
P = 1/3 ∫ nppv dp
        0

This form applies to any particles with momenta, and can be applied photons for light pressure as well as molecules.


(mathematics,dynamics)
https://astro.uni-bonn.de/~nlanger/siu_web/ssescript/new/chapter1-3.pdf

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