Question
Energy required to dissociate 4g of gaseous hydrogen into free gaseous atoms is 208 Kcal at 25o C. The bond energy of H - H bond will be:
Answer: Option C
:
C
Energy needed to dissociate 4g is 208 Kcal
∴ Number of moles of H2 = 2 mole
∴ Energy needed to dissociate 1 mole = 2082= 104 Kcal
∴ The bond energy is 104 Kcal in case of H - H bond.
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:
C
Energy needed to dissociate 4g is 208 Kcal
∴ Number of moles of H2 = 2 mole
∴ Energy needed to dissociate 1 mole = 2082= 104 Kcal
∴ The bond energy is 104 Kcal in case of H - H bond.
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