Which statement correctly describes bond breaking and bond forming?

Which statement correctly describes bond breaking and bond forming?

• A. Bond breaking is Endothermic
• B. Bond breaking is Exothermic
• C. Bond forming is Endothermic
• D. Bond forming is Exothermic

Answer: (A)

Bond energies show that breaking bonds requires energy input to overcome attraction between atoms, so it is endothermic. In contrast, forming new bonds releases energy as the system moves to a more stable, lower-energy state, which is exothermic. The statement that bond breaking is endothermic correctly reflects the energy flow during bond disruption. The other ideas would imply energy is released when breaking bonds or absorbed when forming them, which doesn’t fit the usual energy changes for these steps.

Bond energies show that breaking bonds requires energy input to overcome attraction between atoms, so it is endothermic. In contrast, forming new bonds releases energy as the system moves to a more stable, lower-energy state, which is exothermic. The statement that bond breaking is endothermic correctly reflects the energy flow during bond disruption. The other ideas would imply energy is released when breaking bonds or absorbed when forming them, which doesn’t fit the usual energy changes for these steps.