The following mechanism has been proposed for the gas-phase reaction of chlorofo

Question

The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine:

1) Cl2 2 Cl (fast, reversible)

2) Cl + CHCl3 HCl + CCl3 (slow)

3) Cl + CCl3 CCl4 (fast)

What rate law does this mechanism predict? Choose from the list below and enter the letters for all the terms needed in the rate law. (So for a rate law of k[Cl2] enter AD, and for a rate law of k[Cl2][CHCl3] enter ADF.)

A. k G. [Cl]1/2 M. [Cl]2 B. [CCl3] H. [CHCl3]1/2 N. [CHCl3]2 C. [HCl] I. [CCl3]1/2 O. [CCl3]2 D. [Cl2] J. [HCl]1/2 P. [HCl]2 E. [Cl] K. [Cl2]1/2 F. [CHCl3] L. [Cl2]2

Explanation / Answer

For the given mechanism of gas-phase reaction of chloroform and chlorine,

rate law for the reaction predicted would be,

AHK

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