нн (а) Н—Ҫ—С—О—Н— Н-С—о—ҫ—н H H H H Ethanol Dimethyl ether но H (b) H-C-C-H → H-C-C-H I I H H Ethylene oxide Acetaldehyde

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter23: Carbon: Not Just Another Element
Section23.4: Compounds With A Carbonyl Group
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Two compounds are isomers if they have the same chemical formula but different arrangements of atoms. Use Table 8.3 to estimate ΔH for each of the following gas-phase isomerization reactions and indicate which isomer has the lower enthalpy. (Please explain the process instead of just showing solution)

TABLE 8.3 Average Bond Enthalpies (kJ/mol)
Single Bonds
C-H
413
N-H
391
0-H
463
F-F
155
С-С
348
N-N
163
0-0
146
C-N
293
N-0
201
0-F
190
Cl-F
253
C-0
358
N-F
272
0-CI
203
Cl-CI
242
C-F
485
N-CI
200
0-I
234
C-CI
328
N-Br
243
Br-F
237
C-Br
276
S-H
339
Br-CI
218
C-I
240
H-H
436
S-F
327
Br-Br
193
C-S
259
H-F
567
S-CI
253
H-CI
431
S-Br
218
I-CI
208
Si-H
323
H-Br
366
S-S
266
I-Br
175
Si-Si
226
H-I
299
I-I
151
Si-C
301
Si-o
368
Si-CI
464
Multiple Bonds
C=C
614
N=N
418
0=0
495
C=C
839
N=N
941
C=N
615
N=0
607
S=0
523
C=N
891
S=S
418
C=0
799
C=0
1072
Transcribed Image Text:TABLE 8.3 Average Bond Enthalpies (kJ/mol) Single Bonds C-H 413 N-H 391 0-H 463 F-F 155 С-С 348 N-N 163 0-0 146 C-N 293 N-0 201 0-F 190 Cl-F 253 C-0 358 N-F 272 0-CI 203 Cl-CI 242 C-F 485 N-CI 200 0-I 234 C-CI 328 N-Br 243 Br-F 237 C-Br 276 S-H 339 Br-CI 218 C-I 240 H-H 436 S-F 327 Br-Br 193 C-S 259 H-F 567 S-CI 253 H-CI 431 S-Br 218 I-CI 208 Si-H 323 H-Br 366 S-S 266 I-Br 175 Si-Si 226 H-I 299 I-I 151 Si-C 301 Si-o 368 Si-CI 464 Multiple Bonds C=C 614 N=N 418 0=0 495 C=C 839 N=N 941 C=N 615 N=0 607 S=0 523 C=N 891 S=S 418 C=0 799 C=0 1072
нн
H
(а) Н—С—ҫ—о—н—
H-C-O-¢–H
H H
Ethanol
Dimethyl ether
но
(b) H-C-C–H → H Ċ-C-H
нн
Ethylene oxide
Acetaldehyde
Transcribed Image Text:нн H (а) Н—С—ҫ—о—н— H-C-O-¢–H H H Ethanol Dimethyl ether но (b) H-C-C–H → H Ċ-C-H нн Ethylene oxide Acetaldehyde
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