The binding energy in the CO molecule is higher than in the N2 molecule. Explain the reason for the great strength of this molecule.

In the CO molecule, as in the Slender bond. But in CO, the bond is stronger, because occurs between atoms with equal electronegativity. And the greater the difference in the electronegativity of atoms, the higher the bond polarity and the greater the dipole moment. Additional attractive forces act between neighboring molecules and charges of opposite sign, which increases the bond strength. And for the nitrogen molecule the difference of electronegativities is equal to zero, because the molecule is formed by the same atoms.

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