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Emittance vs Emissivity - What's the difference?

emittance | emissivity |

As nouns the difference between emittance and emissivity

is that emittance is the quantity emitted (per unit area) while emissivity is the energy-emitting propensity of a surface, usually measured at a specific wavelength.

emittance

English

Noun

(en noun) (wikipedia emittance)
  • The quantity emitted (per unit area).

    • emissivity

    English

    Noun

    (emissivities)
  • (physics) The energy-emitting propensity of a surface, usually measured at a specific wavelength.