Question

Define bond enthalpy and bond dissociation enthalpy

Answer 1

Bond enthalpy (also known as bond energy) is defined as the amount ofenergy required to break one mole of the stated bond. For example, the bond energy of a O-H single bond is 463 kJ/mol. This means that it requires 463 kJ of energy to break one mole of O-H bonds.

BOND DEDICATION ENTHALPY

The bond dissociation energy is the energy required to break one mole of the bonds(in gaseous state) under consideration to give the separate atomsin gaseous state.