(a) Use the bond dissociation enthalpy data in Table 10.1 to calculate ΔH° for the reactio...

(a) Use the bond dissociation enthalpy data in Table 10.1 to calculate ΔH° for the reaction of methane with a bromine atom.

(b) The activation energy for this reaction is 76 kJ/mol (18.3 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?

TABLE 10.1 Some Bond Dissociation Enthalpies*