Enthalpy change for the reaction, 4H(g) 2H_2(g) is -869.5 kJ. The dissociation energy of H - H bonds is

MHT CET Chemistry question

Enthalpy change for the reaction, is kJ. The dissociation energy of H H bonds is

Answer: (D)

Forming 2 mol of HH bonds releases 869.5 kJ, so breaking one mole of HH bonds needs kJ (dissociation energy is always

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Question ID VK-064711