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The bond energy of an O- H bond is 109 kcal mol 1. When a mole of water is formed from H and O atoms, then
(a) 218 kcal is released.
(b) 109 kcal is released.
(c) 218 kcal is absorbed.
(d) 109 kcal is absorbed.
choose and explain
It wil be Atwo O-H bonds are there is H2O so 2*109 kcaland energy is released in bond making
218 kcal is released. when forming 1mol of O-H bond 109kcal is released. Water has two O-H bonds. therefore (109 x 2)kcal is released.
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