MHT CET Chemistry question

Bond energy of hydrogen gas is -433 kJ. How much is the bond dissociation energy of 0.5 mole of hydrogen gas? [MHT-CET 2006]

Answer: (D)

Solution

Dissociation is the reverse of bond formation, so for 1 mol the energy needed is +433 kJ and for 0.5 mol it is +433/2 =

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Question ID VK-064239