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Methyl radical (1) can, in principle, react either with Cl2 in the expected Cl a

ID: 808340 • Letter: M

Question

Methyl radical (1) can, in principle, react either with Cl2 in the expected Cl abstraction reaction to give methyl chloride (3) and Cl., or it can react with extant methyl chloride (3) via ''methyl'' abstraction to give ethane (5) and Cl. in a competitive process. Expected: Competition: Calculate, the deltaH for the competition reaction (1 + 3 --> 5 + 4), and indicate whether it is more favorable or less favorable than the expected process (1 + 2 --> 3 + 4). a) delta H = 4 kcal/mol; the competitive process is more favorable b) delta H = 4 kcal/mol; the competitive process ?s less favorable c) 1H = -4 kcal/mol; the competitive process is more favorable d) deltaH = - 4 kcal/mol; the competitive process is less favorable

Explanation / Answer

option ( d) correct answer.