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The bond dissociation energy of O-H bond in a water molecule is _____________

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The bond dissociation energy of O-H bond in a water molecule is _____________

(a) 23 kJ/mole

(b) 470 kJ/mole

(c) 470 J/mole

(d) 23 J/mole

This question was posed to me by my school teacher while I was bunking the class.

Asked question is from Weak Interactions in Aqueous Systems topic in portion Water Basics of Biochemistry

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Right answer is (b) 470 kJ/mole

Best explanation: The energy required to break O-H bond in a water molecule is more than that required for breaking hydrogen bond, which is 470 kJ/mole.

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