Answer
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Work Step by Step
$\Delta\chi=0.102\sqrt{H_{N-I}-1/2(H_{N-N}+H_{I-I})}$
$\Delta\chi=3.0-2.7=0.3$
$H_{N-N}=163, H_{I-I}=151\ kJ/mol$
Solving for the N-I bond dissociation:
$H_{N-I}=166\ kJ/mol$
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 8 Bonding and Molecular Structure - 8-10 DNA, Revisited - Applying Chemical Principles - Questions - Page 334: 2
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