A Possible Mechanism for the Overall Reaction Br₂ (G)+ 2NO

question 2

Multiple Choice

A possible mechanism for the overall reaction Br₂ (g) + 2NO (g) → 2NOBr (g)
Is
NO (g) + Br₂ (g) NOBr₂ (g) (fast)
NOBr₂ (g) + NO (g) 2NOBr (slow)
The rate law for formation of NOBr based on this mechanism is rate = __________.

• A)k₁[NO]1/2
• B)k₁[Br₂]1/2
• C)(k₂k₁/k^-1)[NO]²[Br₂]
• D)(k₁/k^-1)²[NO]²
• E)(k₂k₁/k^-1)[NO]²[Br₂]²

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