Question

what is bond enthalpy?

Answer 1

The Bond Enthalpy is the energy required to break a chemical bond. It is usually expressed in units of kJ mol-1, measured at 298 K. The exact bond enthalpy of a particular chemical bond depends upon the molecular environment in which the bond exists.

Answer 2

$\huge\red{{\mathbb{HERE\: IS\: ANSWER}}}$

$\Huge\purple{{\mathcal{BOND\: ENTHALPY :-}}}$

❀ It is defined as amount of energy required to break one mole of bonds of a particular type between two atoms in a gaseous state .

❀ It is important that larger the bond dissociation enthalpy, stronger will be Bond in the molecule .

❀ In case of polyatomic molecules the measurement of Bond strength is more complicated.

❀ for example in case of H2o molecule the enthalpy needed to break the two O - H bonds is not the same .