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Related to absorptivity: Molar absorptivity


 (əb-zôrp′shən, -sôrp′-)
1. The act or process of absorbing or the condition of being absorbed.
2. A state of mental concentration.

[Latin absorptiō, absorptiōn-, from absorptus, past participle of absorbēre, to absorb; see absorb.]

ab·sorp′tive (-tĭv) adj.
ab′sorp·tiv′i·ty n.


(ˌæbsɔːpˈtɪvɪtɪ; -zɔːp-)
(General Physics) physics a measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the boundaries of the layer have no influence
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.absorptivity - (physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body
physical property - any property used to characterize matter and energy and their interactions
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
References in periodicals archive ?
Based on its low absorptivity it performs also excellent in combination with slip agents.
The near-infrared (NIR) light emitted by the laser is selective and specific for H2O molecules, enabling concentration measurements based upon molar absorptivity.
The analogous molar absorptivity values have been calculated and are determined as: 2105, 2573, 2523, 2013 and 4072 L.mol-1 cm-1 respectively.
By changing the emissivity from 0 to 1.0 and establishing a surrounding temperature of 1000 K (further assuming emissivity = absorptivity), we can obtain a new "corrected" solution including the effects of radiation.
For evaluation of the formation constants and molar absorptivity coefficients from absorbance vs.
It is often presented as stating that, at thermal equilibrium, the emissivity of an object, [[epsilon].sub.v], is equal its absorptivity, [[alpha].sub.v].
Several material combinations, such as Cu-Fe, are interesting for industrial applications, but cause several issues because of differing thermo-physical properties, poor miscibility, differing absorptivity, and heterogeneous material distribution.
According to Kirchhoff's law, an object emits as much radiation as it absorbs in thermal equilibrium, therefore the absorptivity of the absorber in longer wavelengths should be weaker.
Both the absorptivity and the transmissivity (i.e., penetration capability) of IR radiation vary with the wavelength and with the physical and chemical characteristics of the product.
VITROPERM absorptivity varies from 25,000 to over 100,000 as compared to 5,000-15,000 for ferrites.
This deviation is caused by the values of air absorptivity per unit length a and scattering coefficient s.