a measure of the ability of a substance to transmit a difference in temperature; expressed as the thermal conductivity divided by the product of specific heat capacity and density
2. physics
a.
the ability of a substance to permit or undergo diffusion
b. another name for diffusion coefficient
3. another name for diffusion (sense 5)
diffusivity in Chemical Engineering
(dɪfyusɪvɪti)
noun
(Chemical Engineering: General)
Diffusivity is how easily a particular solute will move in a particular solvent for a particular gradient in concentration.
The diffusivity of the methane decreases as the loading of the bigger, slower-moving co-adsorbedmolecules is increased.
Diffusivity is proportional to absolute temperature, inversely proportional to liquid dynamicviscosity and dependent on solution concentration.
Diffusivity is how easily a particular solute will move in a particular solvent for a particulargradient in concentration.