Below are the energy curves showing the change in energy as bonds are broken and formed. The monochlorination of methane is done for you. Refer to the Bond Dissociation energy table (click here for the bond dissociation table) for data to help you determine the energy changes for the monobromination and monoiodination of methane. Also given are the generic reactants and products which are color-coded to match the curves.

http://www.webassign.net/userimages/kasandbe/halomethane1.gif

For a - f input the energies without signs.

a) The energy change for A is kJ/mol

Question

Below are the energy curves showing the change in energy as bonds are broken and formed. The monochlorination of methane is done for you. Refer to the Bond Dissociation energy table (click here for the bond dissociation table) for data to help you determine the energy changes for the monobromination and monoiodination of methane. Also given are the generic reactants and products which are color-coded to match the curves. 

http://www.webassign.net/userimages/kasandbe/halomethane1.gif

For a - f input the energies without signs.

    a) The energy change for A is kJ/mol