Why is there difference in bond enthalpy of O-H bond in water and N-H

1.	Why is there difference in bond enthalpy of O-H bond in water and N-H bonds in ammonia.
Answer» Explanation: It is OBTAINED by dividing total bond dissociation enthalpy by the number of BONDS broken. The bond ENTHALPIES of O-H bond in C2H5OH and H2O are different because of the different chemical (electronic) environment around oxygen atom. Hope this helps......

Why is there difference in bond enthalpy of O-H bond in water and N-H bonds in ammonia.

Answer»

Explanation:

It is OBTAINED by dividing total bond dissociation enthalpy by the number of BONDS broken. The bond ENTHALPIES of O-H bond in C2H5OH and H2O are different because of the different chemical (electronic) environment around oxygen atom.

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Why is there difference in bond enthalpy of O-H bond in water and N-H bonds in ammonia.

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