Mixed Order
In a mixed-order reaction, the order of a reaction changes in the course of a reaction as a result of changing variables such as pH. An example is the oxidation of an alcohol to a ketone by a ruthenate (RuO42−) and a hexacyanoferrate, the latter serving as the sacrificial catalyst converting Ru(IV) back to Ru(VI): the disappearing-rate of the ferrate is zero-order with respect to the ferrate at the onset of the reaction (when its concentration is high and the ruthenium catalyst is quickly regenerated) but changes to first-order when its concentration decreases.
Read more about this topic: Order (chemistry)
Famous quotes containing the words mixed and/or order:
“To brew up an adult, it seems that some leftover childhood must be mixed in; a little unfinished business from the past periodically intrudes on our adult life, confusing our relationships and disturbing our sense of self.”
—Roger Gould (20th century)
“Thoroughly to unfold the labyrinths of the human mind is an arduous task.... In order to dive into those recesses and lay them open to the reader in a striking and intelligible manner, ‘tis necessary to assume a certain freedom in writing, not strictly perhaps within the limits prescribed by rules.”
—Sarah Fielding (1710–1768)