Determine the enthalpy change for  combustion of using bond energies for             2C2H6(g)  + 7O2(g)  ➜ 4CO2(g)  + 6H2O(l) see image

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Chapter9: Ionic And Covalent Bonding
Section: Chapter Questions
Problem 9.107QP
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Determine the enthalpy change for  combustion of using bond energies for 

           2C2H6(g)  + 7O2(g)  ➜ 4CO2(g)  + 6H2O(l)

see image 

Average Bond Energies (kJ/mol)
Single Bonds
H-H 432
H-F
565
H-CI 427 N-F
H-Br 363
N-CI
H-I
N-H
N-N
391 1-I
160
I-CI
272 I-Br
200
295 N-Br 243
C-H 413
C-C 347
C-N 305
C-0 358
C-F
C-CI 339
C-Br 276
C-I
240
C-S 259
S-H
347
N-O 201 S-F 327
0-H 467
S-CI
253
0-0 146
S-Br
218
0-F
190 S-S
266
0-CI 203
485 0-1
149
208
175
234 Si-Si 340
Si-H
393
Si-C
360
Si-O
452
F-F
154
F-CI 253
F-Br
237
CI-CI
239
Cl-Br 218
Br-Br
193
Multiple Bonds
C=C
C=
0=0
C=0*
C=0
N=0
N=N
N=N
C=N
C=N
614
839
495
745
1072
607
418
941
891
615
Transcribed Image Text:Average Bond Energies (kJ/mol) Single Bonds H-H 432 H-F 565 H-CI 427 N-F H-Br 363 N-CI H-I N-H N-N 391 1-I 160 I-CI 272 I-Br 200 295 N-Br 243 C-H 413 C-C 347 C-N 305 C-0 358 C-F C-CI 339 C-Br 276 C-I 240 C-S 259 S-H 347 N-O 201 S-F 327 0-H 467 S-CI 253 0-0 146 S-Br 218 0-F 190 S-S 266 0-CI 203 485 0-1 149 208 175 234 Si-Si 340 Si-H 393 Si-C 360 Si-O 452 F-F 154 F-CI 253 F-Br 237 CI-CI 239 Cl-Br 218 Br-Br 193 Multiple Bonds C=C C= 0=0 C=0* C=0 N=0 N=N N=N C=N C=N 614 839 495 745 1072 607 418 941 891 615
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