Based on the following data,what is the I-I bond energy? H₂(g)+ I₂(g)→ HI(g); Δ_rH° = 26.36 kJ/mol-rxn Bond Bond Energy (kJ/mol) H-H 435 H-I 295 A) 365 kJ/mol B) 208 kJ/mol C) -208 kJ/mol D) -155 kJ/mol E) 155 kJ/mol

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We can use Hess's Law to calculate the I-I bond energy: 11 H₂(g) + 11 I₂(g) → 11 H2_r(g) + I2(g) HI(g) → 1/2 H2_r(g) + 1/2 I2(g) Overall reaction: 11 H₂(g) + 11 I₂(g) → 11 HI(g); Δ_rH° = 26.36 kJ/mol-rxn We can add up the bond energies on the left side of the reaction and subtract the bond energy of the H-I bond on the right side of the reaction: 11(435 kJ/mol) + 11(295 kJ/mol) - 1(436 kJ/mol) = 208 kJ/mol Therefore, the I-I bond energy is 208 kJ/mol.

Based on the Following Data,what Is the I-I Bond Energy