The required heat for dissociation of 1 mole `H_(2)O` into its atoms (H and oxygen) is `Delta H_("Dissociation")`. Then calculate the bond energy of O - H bond.
`H_(2)O(g)rarr O(g)+2H(g) , Delta H_("Dissociation")`

Explanation

To calculate the bond energy of the O-H bond in water (H₂O), we start with the dissociation reaction of water into its constituent atoms:

**Step 1: Write the dissociation reaction.**
The dissociation of water can be represented as:
\[ \text{H}_2\text{O(g)} \rightarrow \text{O(g)} + 2\text{H(g)} \]
This reaction indicates that one mole of water dissociates into one mole of oxygen gas and two moles of hydrogen gas.

**Step 2: Understand the relationship between bond energy and dissociation energy.**
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