The electronic spectrum of the 1Br molecule shows two low-lying, well defined convergence limits at 14660 and 18345 cm-1. Energy levels for the iodine and bromine atoms occur at 0,7598 and 0,3685 cm-1, respectively. Other atomic levels are at much higher energies. What possibilities exist for the numerical value of the dissociation energy of 1Br? Decide which is the correct possibility by calculating this quantity from ∆ fH(1Br,g) = +40.79 k] mol-1 and the dissociation energies ofI2(g) and Br2(g) which are 146 and 190 k] mol-1, respectively.