MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

The molecule dissociates as (i) ; kJ (ii) ; kJ The average bond energy (in kJ) for water is

Answer: (D)

Solution

Total energy to break both O-H bonds = 490 + 424 = 914 kJ, so the average O-H bond energy = 914/2 = 457 kJ;

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Question ID VK-064477