Enthalpy change for the reaction 4h gives 2h2


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Enthalpy change for the reaction,

4H(g)→2H2(g) is –869.6kJ The dissociation energy of H – H bond is

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Answer:

Explanation:

2H₂(g) ⇒ 4H , ΔH = +869.6 KJ

H₂(g) ⇒ 2H , ΔH = 869.6/2 = 434.8


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