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 :
Correct Option: , 4
Solution:
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