(a) Using bond-dissociation enthalpies from Table 4-2 (page 143), calculate the heat of reaction for each step in the free-radical bromination of methane.
(b) Calculate the overall heat of reaction.
Step 1 of 3
Given reaction is a substitution; bromine does not add to methane but a bromine atom substitutes for one hydrogen atoms, which becomes part of the HBr byproduct.
Bromination of methane consists of three steps, which are initiation,propagation and termination.
The initiation step, which generates a reactive intermediate:
Light absorbed by bromine, split a bromine molecule into two bromine atoms.
Propagation steps, in which the reactive intermediates reacts with a stable molecule to form another reactive intermediate, allowing the chain to continue until the supply of reactants is exhausted or the reactive intermediate is destroyed.
First propagation step:
Breaking a -Br...
Textbook: Organic Chemistry
Author: L.G. Wade Jr
Since the solution to 10P from 4 chapter was answered, more than 300 students have viewed the full step-by-step answer. This full solution covers the following key subjects: calculate, reaction, heat, methane, enthalpies. This expansive textbook survival guide covers 25 chapters, and 1336 solutions. The answer to “(a) Using bond-dissociation enthalpies from Table 4-2 (page 143), calculate the heat of reaction for each step in the free-radical bromination of methane. (b) Calculate the overall heat of reaction.” is broken down into a number of easy to follow steps, and 30 words. The full step-by-step solution to problem: 10P from chapter: 4 was answered by , our top Chemistry solution expert on 05/06/17, 06:41PM. Organic Chemistry was written by and is associated to the ISBN: 9780321768414. This textbook survival guide was created for the textbook: Organic Chemistry, edition: 8.