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    Is this a possible two step mechanism for this reaction : 2NO + 2H2-----> N2 + 2H20

    (1), NO + NO + H2 -----> N2 + H20 + O (Radical)
    (2), H2 + O( Radical) ---------> H20
    This should add up to give the overall equation above the page right ? By the way NO is second order and H is first order
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    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

    You can also find the Exam Thread list for A-levels here and GCSE here. :dumbells:


    Just quoting in Puddles the Monkey so she can move the thread if needed
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    (Original post by Casio fx-991ES)
    Is this a possible two step mechanism for this reaction : 2NO + 2H2-----> N2 + 2H20

    (1), NO + NO + H2 -----> N2 + H20 + O (Radical)
    (2), H2 + O( Radical) ---------> H20
    This should add up to give the overall equation above the page right ? By the way NO is second order and H is first order
    Not likely because your first step requires collision of 3 species at once.

    Did the question say a two step mechanism was required?
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    (Original post by Casio fx-991ES)
    Is this a possible two step mechanism for this reaction : 2NO + 2H2-----> N2 + 2H20

    (1), NO + NO + H2 -----> N2 + H20 + O (Radical)
    (2), H2 + O( Radical) ---------> H20
    This should add up to give the overall equation above the page right ? By the way NO is second order and H is first order
    I don't think you can get a 2 step mechanism here.

    1) NO + NO --> N2O2
    2) N2O2 + H2 --> N2O + H2O
    3) N2O + H2 --> N2 + H2O

    Step 2 is rds
 
 
 
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