Example Values
Gases at 1 atm., solutes in liquid at infinite dilution. Legend: (s) – solid; (l) – liquid; (g) – gas; (dis) – dissolved.
| Species pair (solute-solvent) | Temperature (°C) | D (cm2/s) | Reference |
|---|---|---|---|
| air(g) - H2O(g) | 25 | 0.282 | |
| air(g) -oxygen(g) | 25 | 0.176 | |
| oxygen(dis) - water(l) | 25 | 2.1x10-5 | |
| hydrogen(dis) - water(l) | 25 | 4.5x10-5 | |
| hydrogen - iron(s) | 10 | 1.66x10-9 | |
| hydrogen - iron(s) | 100 | 124x10-9 | |
| aluminium - copper(s) | 20 | 1.3x10-30 |
Read more about this topic: Mass Diffusivity
Famous quotes containing the word values:
“If the Russians have gone too far in subjecting the child and his peer group to conformity to a single set of values imposed by the adult society, perhaps we have reached the point of diminishing returns in allowing excessive autonomy and in failing to utilize the constructive potential of the peer group in developing social responsibility and consideration for others.”
—Urie Bronfenbrenner (b. 1917)
“Autonomy means women defining themselves and the values by which they will live, and beginning to think of institutional arrangements which will order their environment in line with their needs.... Autonomy means moving out from a world in which one is born to marginality, to a past without meaning, and a future determined by others—into a world in which one acts and chooses, aware of a meaningful past and free to shape one’s future.”
—Gerda Lerner (b. 1920)