20. What would be a chain-propagating step in the reaction shown below? Cl2 + CH3CH2CH3 ---heat---> CH3CHClCH3 + HCl (A) CH4 + .Cl ---> .CH3 + HCl (B) Cl. + .Cl ---> Cl2 (C) CH3CH2CH3 + .Cl ---> .CH2CH2CH3 + HCl (D) CH3CH2CH3 + .Cl ---> CH3.CHCH3 + HCl (E) None of the above steps are a propagating step for the reaction shown above.
Added by Philip B.
Close
Step 1
Initiation step: Cl2 -> 2Cl· (formation of chlorine radicals) Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 95 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which of the following steps for the radical chlorination of methane depict/s reaction propagation?
David C.
Classify the following reactions according to whether they are addition, substitution, elimination, or isomerization. (a) (b) $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}_{2}+\mathrm{Cl}_{2} \stackrel{\text { heat }}{\longrightarrow} \mathrm{ClCH}_{2} \mathrm{CH}=\mathrm{CH}_{2}+\mathrm{HCl}$ (c) (d) (e) (f)
The chlorination of methane CH4 + Cl2 → CH3Cl + HCl is thought to proceed via the following radical mechanism: Cl2 ⇌ Cl∙ + Cl∙ k1, k-1 CH4 + Cl∙ → CH3∙ + HCl k2 CH3∙ + Cl2 → CH3Cl + Cl∙ k3 CH3∙ + Cl∙ → CH3Cl k4 a) Characterize all steps of the mechanism, i.e. initiation, propagation, etc. b) Derive a rate law under steady-state conditions, assuming that reaction 4 is in fact negligible and need not appear in rate expressions. c) What is the reaction order with respect to each of the reactants and the effective rate constant?
Sri K.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD