If enthalpy of atomisation for Br 2 l is x k J / m o l and bond enthalpy for B r 2 is y k J / m o l , the relation between them

Question

If enthalpy of atomisation for Br 2 l is x k J / m o l and bond enthalpy for B r 2 is y k J / m o l , the relation between them, is x y, is x > y, does not exist, is x = 7 y

MARKS App · Accepted Answer

Based on hess law it can be given as As Δ H a t o m i s a t i o n = Δ H V a p . + Bond Energy Hence x > y

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