Question: If enthalpy of atomisation for $\mathrm{Br}_{2(1)}$ is $x \mathrm{~kJ} / \mathrm{mol}$ and bond enthalpy for $\mathrm{Br}_{2}$ is $\mathrm{y} \mathrm{kJ} / \mathrm{mol}$, the relation between them :
is $x=y$
is $x
does not exist
is $x>y$
Correct Option: , 4
Solution:
