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:
“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)
“Writing ought either to be the manufacture of stories for which there is a market demand—a business as safe and commendable as making soap or breakfast foods—or it should be an art, which is always a search for something for which there is no market demand, something new and untried, where the values are intrinsic and have nothing to do with standardized values.”
—Willa Cather (1876–1947)