The bond dissociation energies of X 2 Y 2 and XY are in the ratio of 1 : 0 .5 : 1 . ΔH for the formation of XY is - 200 kJ mol - 1 . What will be the bond dissociation energy of X 2 ?

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Aicharya · Accepted Answer

Let B.E. of x 2 , y 2 and xy are x kJ mol - 1 , 0 .5 x kJ mol - 1 and x kJ mol - 1 respectively 1 2 X 2 + 1 2 Y 2 → XY ; ΔH = - 200 kJ mol - 1 ΔH = - 200 = Σ B . E Reactant - Σ B . E Product - 200 = 1 2 × x + 1 2 × 0 .5 x - 1 × x ⇒ x = 800 kJ mol B.E of X 2 = 800 kJ mol - 1

The bond dissociation energies of X 2 Y 2 and XY are in the ratio of 1 : 0 .5 : 1 . ΔH for the formation of…

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