Chapter 10, Problem 17P

Use the bond dissociation enthalpy data in Table $\text{10}\text{.1}$

to calculate ${\text{ΔH}}^{\text{0}}$ for the reaction

of methane with a bromine atom.

The activation energy for this reaction is $\text{76 kJ/mol (18}\text{.3 kcal/mol)}$. Sketch a potential

energy diagram for it, labeling reactants, product, and the transition state. Does the

transition state more closely resemble reactants or products?