Definitions
from The Century Dictionary.
- noun The physical constant or coefficient which expresses the rate, in cubic centimeters per second, at which two fluids diffuse into each other through the unit area of a horizontal plane separating them: as, the interdiffusivity of CO2 and O2 is about 0.140 cm/see.
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Examples
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The material diffusivities of gases, according to Loschmidt's experiments, range from 0.98 (the interdiffusivity of carbonic acid and nitrous oxide) to 0.642 (the interdiffusivity of carbonic oxide and hydrogen), while the thermal diffusivities of gases, calculated according to Clausius 'and Maxwell's kinetic theory of gases, are 0.089 for carbonic acid, 0.16 for common air of other gases of nearly the same density, and
Scientific American Supplement, No. 460, October 25, 1884 Various
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