The bonds in dibenzyl
Δ
f
H
0
(
Bz–Bz
)
=
2
Δ
c
H
0
(
Bz
(g)
)
−
Δ
f
H
0
(
Bz–Bz
(g)
)
=
+
277.3
kJ
mol
−
1