What is the bond enthalpy for the bond A-B given the information below? A-B=B-A + B=C A-B + A-C + B-B AHrn= 652 kJ/mol Average Bond Enthalpy (kJ/mol) B=B 512 B=C 645 A-C 345 B-B 243 O 83 kJ/mol O 1630 kJ/mol O 312 kJ/mol O 176 kJ/mol

Chemistry: Principles and Practice
3rd Edition
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Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter9: Chemical Bonds
Section: Chapter Questions
Problem 9.90QE
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What is the bond enthalpy for the bond A-B given the information below?
A-B=B-A + B=C A-B + A-C + B-B
AHx= 652 kJ/mol
rxn
Average Bond Enthalpy
(kJ/mol)
B=B
512
B=C
645
А-С
345
B-B
243
O 83 kJ/mol
O 1630 kJ/mol
O 312 kJ/mol
O 176 kJ/mol
Calculate the AH°n for the reaction shown below.
103 (aq)
+ l'(aq) + 2 H* (aq) + 2 HSO3 (aq)
I2(aq) + 2 HSO4 (aq) + H200
Given:
103 (ag) + 3 HSO3 (aq) - l'(aq) + 3 HSO4 (aq)
AH rxn= +463 kJ/mol
103 (ag) + 6 H' (aq) + 51(aq)
3 l2(aq) + 3 H200)
AH xn= +328 kJ/mol
21 (aq) + HSO4 (aq) +2 H*(aq) → 12(aq) + HSO3 (aq) + H200)
AH rxn= -332 kJ/mol
O 1123 kJ/mol
O 934 kJ/mol
O 562 kJ/mol
O 467 kJ/mol
Transcribed Image Text:What is the bond enthalpy for the bond A-B given the information below? A-B=B-A + B=C A-B + A-C + B-B AHx= 652 kJ/mol rxn Average Bond Enthalpy (kJ/mol) B=B 512 B=C 645 А-С 345 B-B 243 O 83 kJ/mol O 1630 kJ/mol O 312 kJ/mol O 176 kJ/mol Calculate the AH°n for the reaction shown below. 103 (aq) + l'(aq) + 2 H* (aq) + 2 HSO3 (aq) I2(aq) + 2 HSO4 (aq) + H200 Given: 103 (ag) + 3 HSO3 (aq) - l'(aq) + 3 HSO4 (aq) AH rxn= +463 kJ/mol 103 (ag) + 6 H' (aq) + 51(aq) 3 l2(aq) + 3 H200) AH xn= +328 kJ/mol 21 (aq) + HSO4 (aq) +2 H*(aq) → 12(aq) + HSO3 (aq) + H200) AH rxn= -332 kJ/mol O 1123 kJ/mol O 934 kJ/mol O 562 kJ/mol O 467 kJ/mol
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