Ostwald's adsorption isotherm

Ostwald's adsorption isotherm

[′ȯst‚välts ad′sörp·shən ′ī·sə‚thərm]
(thermodynamics)
An equation stating that at a constant temperature the weight of material adsorbed on an adsorbent dispersed through a gas or solution, per unit weight of adsorbent, is proportional to the concentration of the adsorbent raised to some constant power.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.