step 1 CH9) + Cl9} CH3() + HC + Cl • slow step 2 CH) + Cla19) CH;Cl(g) + Cl • fast a. Write the overall chemical reaction and write an overall rate expression for the appearance of CH3CI (g)- Note that this rate expression can include the concentration of intermediates. b. Using your answer to part b, write the rate expression for the change in concentration of CH3 (g)- c. Using the steady state approximation. give an expression for the appearance of CH3CI tg) that does not depend on the concentration of CH3 e). Note that the first reaction is reversible and the second is not.
step 1 CH9) + Cl9} CH3() + HC + Cl • slow step 2 CH) + Cla19) CH;Cl(g) + Cl • fast a. Write the overall chemical reaction and write an overall rate expression for the appearance of CH3CI (g)- Note that this rate expression can include the concentration of intermediates. b. Using your answer to part b, write the rate expression for the change in concentration of CH3 (g)- c. Using the steady state approximation. give an expression for the appearance of CH3CI tg) that does not depend on the concentration of CH3 e). Note that the first reaction is reversible and the second is not.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter16: Reaction Rates
Section: Chapter Questions
Problem 1STP
Related questions
Question
The following is a proposed mechanism for the chlorination of methane. Use the information to solve for a,b, and c.
Transcribed Image Text:step 1 CH) + Cl{g}
CH3) + HCl) + Cl •
slow
step 2 CH) + Clu9)
CH;Cl(g) +Cl •
fast
a. Write the overall chemical reaction and write an overall rate expression for the appearance of
CH3CI
(g)-
Note that this rate expression can include the concentration of intermediates.
b. Using your answer to part b, write the rate expression for the change in concentration of CH3
(g)-
c. Using the steady state approximation. give an expression for the appearance of CH3CI (g) that
does not depend on the concentration of CH3 e). Note that the first reaction is reversible and the
second is not.
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