different between absorptivity vs absorbtivity

English

absorptive +? -ity

absorptivity (plural absorptivities)

The quality of being absorptive; absorptiveness. [First attested in the mid 19^th century.]
(thermodynamics) The fraction of radiation absorbed by a surface to the total radiation incident on the surface. [First attested in the mid 19^th century.]
(analytical chemistry) The constant a in the Beer's law relation A = abc, where A is the absorbance, b the path length, and c the concentration of solution. Also known as absorptive power. Formerly known as absorbency index; absorption constant; extinction coefficient.

absorbtive +? -ity

absorbtivity (plural absorbtivities)

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