One possible mechanism for the gas phase reaction of hydrogen with nitrogen mono
ID: 940948 • Letter: O
Question
One possible mechanism for the gas phase reaction of hydrogen with nitrogen monoxide is: step 1 slow: H_2(g) + 2 NO(g) rightarrow N_2O(g) + H_2O(g) step 2 fast. N_2O(g) + H_2(g) rightarrow N_2(g) + H_2O(g) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. Which species acts as a catalyst? Enter formula. If none, leave box blank: Which species acts as a reaction intermediate? Enter formula. If none, leave box blank: Complete the rate law for the overall reaction that is consistent with this mechanism. (Use the form k|A|^mlB|^n..., where 'I' is understood (so don't write it) for m, n etc.)Explanation / Answer
overall reaction
add both equations
H2 + 2NO + N2O + H2 --> N2O + H2O + N2 + H2O
cancel comon terms
2H2 + 2NO --> N2 + 2H2O
2)
No specie act as a catalyst
3)
N2O is an intermediate
4)
overall rate law,
apply slow rate law since slow steps are the determinant
RATE = k*[H2][NO]^2
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