Consider the reactionThe rate constant for two parallel reactions were found to be ${10}^{-2}{\mathrm{dm}}^3{\mathrm{mol}}^{-1}{\mathrm{s}}^{-1}$and $4\times {10}^{-2}{\mathrm{dm}}^3{\mathrm{mol}}^{-1}{\mathrm{s}}^{-1}$If the corresponding energies of activation of the parallel reaction are 100 and 120 kJ/mol respectively, what is the net energy of activation$\left({\mathrm{E}}_{\mathrm{a}}\right)$of A ?