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The bond energy of an O -H bond is 109 K...

The bond energy of an `O -H` bond is 109 K. cal `"mole"^(-1)`. When a mole of water is formed

A

218 K. cal is released

B

109 K. cal is released

C

218 K. cal is absorded

D

109 K. cal us absorbed

Text Solution

Verified by Experts

The correct Answer is:
A
In water there are `2 O-H` bonds
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