Bond Length, Energy Order Bond order Bond length bond Ave Length ve Energy/k mol- H-H 74 pm 432 Average distance H-C 109p 415 H-N 101 390 between two 9 460 H-Cl l27 428 bonding atoms H-Br 141 362 154 345 Bond energy C=C 133 615 C≡ 120 Energy required to N≡N 110 942 Cl-cl 240 break a given bond Br-Br 190 267 149 (in moles)Bond Length, Energy & Order  Bond order  Bond length  Average distance between two bonding atoms.  Bond energy  Energy required to break a given bond (in moles). 10