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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

The enthalpy change () for the process, is 1724 kJ mol. If the bond energy of N H bond in ammonia is 391 kJ mol, what is the bond energy for N N bond in ?

Answer: (B)

Solution

has one NN and four NH bonds, so , giving

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Question ID VK-064762