Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 70E
Use bond energy values (Table 3-3) to estimate ∆E for each of the following reactions.
a. 
b. 
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Students have asked these similar questions
2. Use the table below to estimate AH for the
reaction NO + O3 → NO2 + O2. Does this
reaction consume or produce heat?
Single Bond Energies (kJ/mol of bonds)
н сN oS F C Br I
Н 436
C 413 346
N 391 305 163
O 463 358 201 146
S 347 272
226
-
F 565 485 283 190 284 155
Cl 432 339 192 218 255 253 242
Br 366 285
201 217 249 216 193
-
I 299 213
201
278 208 175 151
-
-
Multiple Bond Energies (kJ/mol of bonds)
C=C 602
C=N 615
C=O 799
C=C 835
CEN 887
C=O 1072
N=N 418
N=O 607
N=N 945
O=O 498
a. Use bond energy values to estimate AH for the
following reaction.
CEN
ΔΗ =
C - N
H - H
C-H
N - H
ΔΗ =
b. Use bond energy values to estimate AH for the
following reaction.
H-F
N - H
H-C=N (g) + 2 H₂(g):
NEN
(891 kJ/mol)
(305 kJ/mol)
(432 kJ/mol)
(413 kJ/mol)
(391 kJ/mol)
N - N (160. kJ/mol)
(565 kJ/mol)
(391 kJ/mol)
(941 kJ/mol)
(154 kJ/mol)
F-F
kJ
H-
kJ
H
C-
H
H
-N(g)
H
H
(g) +2F2(g) → N=N(g) + 4HF(g)
H
I only need help understanding B. so dont worry about doing the other parts. Thanks!
Chapter 8 Solutions
Chemistry
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