1. Energy requires breaking a chemical bond. For example, in the breaking of one mole of hydrogen gas into atoms, 458 kJ of energy is required. The bond strength, in this case, is said to be 458 kJ per mole, i.e., per Avogadro’s number of bonds.

2. Bond strength or bond energy of a particular type of bond is defined as the energy required to break one mole of bonds of that type in a substance in a gaseous state.

3. Bond order is given by the number of bonds between the two atoms in a molecule. For example, in H_2, there is only one single shared electron pair, hence the bond order is 1.

4. The bond strength in terms of bond order is that higher will be the bond strength, it means more strong will be the bond, and as a result, greater will be the bond order.

5. It means greater is the bond order, higher the bond energy is required to break the strong bond.