Chemical Forums
Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: Dj_chick on April 24, 2009, 08:23:14 AM
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The oxidation of nitric oxide shows the following characteristic
Stoichiometry: 2NO + O2 :rarrow: 2NO2
Rate Equation: d[NO2] / dt = k3[NO]2[O2]
NO + O2 ::equil:: NO3 ---------- (1)
NO3 + NO :rarrow: 2NO2----------(2)
I. Show that this mechanism is consistent with:
a. the observed reaction stoichiometry
b. the experimental equation
II. what experiment would you carry out to check the validity of the proposed mechanism
III. why is it unlikely that the reaction would be single step
Answers: this is how far i got with my answers but i have no idea is im right or wrong.
I.a. there is more then 1step in this reaction
I.b) d[NO2] / dt = k3[NO]2[O2] therefore 1/2 d[NO2] / dt = k2[NO3][NO] and because the NO3 is an intermeditae it need to be eliminated this can be done by using the steady state assumption
III. does this have something to do with the molecularity
Thank you
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The oxidation of nitric oxide shows the following characteristic
Stoichiometry: 2NO + O2 :rarrow: 2NO2
Rate Equation: d[NO2] / dt = k3[NO]2[O2]
NO + O2 ::equil:: NO3 ---------- (1)
NO3 + NO :rarrow: 2NO2----------(2)
I. Show that this mechanism is consistent with:
a. the observed reaction stoichiometry
b. the experimental equation
II. what experiment would you carry out to check the validity of the proposed mechanism
III. why is it unlikely that the reaction would be single step
Thank you
[can anyone help me with this problems that will be great... :)]
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The oxidation of nitric oxide shows the following characteristic
Stoichiometry: 2NO + O2 :rarrow: 2NO2
Rate Equation: d[NO2] / dt = k3[NO]2[O2]
NO + O2 ::equil:: NO3 ---------- (1)
NO3 + NO :rarrow: 2NO2----------(2)
I. Show that this mechanism is consistent with:
a. the observed reaction stoichiometry
b. the experimental equation
II. what experiment would you carry out to check the validity of the proposed mechanism
III. why is it unlikely that the reaction would be single step
Answers: this is how far i got with my answers but i have no idea if im right or wrong.
I.a. there is more 2 steps which are adding NO + O2 ::equil:: NO3 ---------- (1)
NO3 + NO :rarrow: 2NO2----------(2)
this will give an overall equation of the stoichiometry of 2NO + O2 :rarrow: 2NO2
I.b) d[NO2] / dt = k3[NO]2[O2] therefore 1/2 d[NO2] / dt = k2[NO3][NO] and because the NO3 is an intermeditae it need to be eliminated this can be done by using the steady state assumption
III. does this have something to do with the molecularity
Help me with any of this please. Thank you