Problem 2 Consider the following reaction between nitrogen dioxide gas and carbon monoxide gas 21 + 2H* + H2O2 → I2 + 2H20 (g) The experimentally determined rate law for this reaction is Rate = k [l'] [H20z]. The following mechanism has been proposed I + H202 → HOI + OH" Slow HOI +I → OH" + I2 (g) Fast H* + OH" → H20 Fast Are there any intermediates in the proposed mechanism? If present, identify them. Which is the rate-determining step in the mechanism - the 1“, 2nd or 3rd step? Why? What is the rate law for the rate determining step based on its molecularity? What is the rate law for the mechanism?

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Problem 2
Consider the following reaction between nitrogen dioxide gas and carbon monoxide
gas
21 + 2H* + H202 > I2 + 2H20 (g)
The experimentally determined rate law for this reaction is Rate = k [I"] [H2Oz].
The following mechanism has been proposed
I + H202 → HOI + OH"
HOI + I → OH" + I2 (g)
Slow
Fast
H* + OH" → H20
Fast
Are there any intermediates in the proposed mechanism? If present, identify them.
Which is the rate-determining step in the mechanism – the 1s*t, 2nd or 3rd step? Why?
What is the rate law for the rate determining step based on its molecularity?
What is the rate law for the mechanism?
Transcribed Image Text:Problem 2 Consider the following reaction between nitrogen dioxide gas and carbon monoxide gas 21 + 2H* + H202 > I2 + 2H20 (g) The experimentally determined rate law for this reaction is Rate = k [I"] [H2Oz]. The following mechanism has been proposed I + H202 → HOI + OH" HOI + I → OH" + I2 (g) Slow Fast H* + OH" → H20 Fast Are there any intermediates in the proposed mechanism? If present, identify them. Which is the rate-determining step in the mechanism – the 1s*t, 2nd or 3rd step? Why? What is the rate law for the rate determining step based on its molecularity? What is the rate law for the mechanism?
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