Bond-dissociation energy is the measure of bond strength in a chemical bond.
Bond energy of hydrogen bromide molecule (sigma bond) is energy needed for breaking up one molecule of hydrogen bromide into hydrogen and bromime atoms.
When hydrogen (H) and bromine atoms (Br) form molecule of hydrogen bromide (HBr), than energy is released and bond is formed.
Two molecules of HBr collide and then form H2 and Br2. During the collision, the bonds in the HBr molecules are <span>(3) formed as energy is absorbed.</span>
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