resonance averages the bond characteristics as a whole. plz explain.....

Dear student!
Some bond characteristics are bond length, bond angle ,bond enthalpy and bond order. We see that, resonance is a phenomena which changes the bond length,bond energies and bond orders also to stabilize the molecule and represent the most stable resonance structure by representing some of the canonical structures.

In this, way all the parameters are balanced in average pattern to maintain the stability of the molecules and so it is said as the resonance averages bond characters.