2 NO(g) + Cl2(g) --> 2 NOCl (g) Two proposed mechanisms for the reaction are given...

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2 NO(g) + Cl₂(g) --> 2 NOCl (g)
Two proposed mechanisms for the reaction are given below. Whichis the better mechanism? Explain both why the better mechanism isbetter and why the worse mechanism is worse.
Â Â Â Â Â Â Mechanism1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Mechanism 2
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO + Cl₂ --> NOCl +ClÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Cl₂ --> Cl + Cl
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO + Cl --> NOCl NO + Cl --> NOCl
NO + Cl₂ --> NOCl + Cl
For the correct mechanism, identify:
a. the rate-limiting step
b. any intermediates
c. any catalysts

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3.9 Ratings (504 Votes)

Â Â Â Â Â Â Mechanism 1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO + Cl₂ --> NOCl + ClÂ Â Â Â Â SLow step Â Â slow step is rate determining step Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NO + Cl --> NOCl Â Â Â Â Â Â Â Â fast step

Â Â Â Â Â Â Â Â Â Â Â Â --------------------------------------------------------------------------------

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2 NO(g) + Cl₂(g) --> 2 NOCl (g)Â Â Â over all reaction

NO + Cl₂ --> NOCl + ClÂ Â Â Â Â SLow step Â Â slow step is rate determining step Â Â of rate limiting step

b. any intermediatesÂ Â . Cl is intermediate

c. no catalyst

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2 NO(g) + Cl2(g) --> 2 NOCl (g) Two proposed mechanisms for the reaction are given...

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