This reaction is first order in [Fe(III)L] and order -1 (i.e., inverse order) in [Fe(II)L], as shown by the rate equation:

d[Fe(III)L] _ fc[Fe(III)L] Jt ~ [Fe(II)L] Reaction 1 may be assumed to be composed of the

that it essentially remains constant during the reaction, and knowing that the rate-determining step is reaction 6. Note that this elementary reaction obeys the rate equation:

*2. Some gases can be removed from waste gas streams by absorption-oxidation processes. For example, NO can be absorbed in a basic solution of a cobalt (IH)-ethylenediamine complex, which acts as a catalyst for the oxidation of NO to N02, as shown in the following series of reactions (see Long, 2005):

Co(en)2(NO)OH2+ + en 2Co(en)2(NO)OH2+ + 02(g) ->

(2) 2Co(en)2(OH)+ + NO2 + N03" + H2Ow (3) Co(en)2(OH)2 + en Co(en)\+ + 20H~ (4)

following elementary steps, each one characterized by its corresponding physicochemical parameters: a) K (equilibrium constant), and b) k (rate constant) as follows:

Fe(III)L + HSOj = FeSO* + L + H+ K},k3 (3) FeSO+ = Fe(II) + #SO^ KA, k4 (4)

(rate determining step) (6)

The global reaction is known to have the form:

Write this reaction using the true formulas of X, Y, Z, P, Q, and R.

0 0

Post a comment