Calculate the delta H of the combustion of ethane (C2H6) gas with Oxygen gas (02) using average bond energies. *

Chemistry by OpenStax (2015-05-04)
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Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter8: Advanced Theories Of Covalent Bonding
Section: Chapter Questions
Problem 2E: Draw a curve that describes the energy of a system with H and Cl atoms at varying distances. Then,...
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Calculate the delta H of the combustion of
ethane (C2H6) gas with Oxygen gas (02)
using average bond energies. *
Table 9.2 Average Bond Energles (kJ/mol) and Bond Lengths (pm)
Bond Energy Length Bond Energy Length Bond Energy Length
Single Bonds
H-H
432
H-F
565
H-CI 427
H-Br
H-1
363
295
74
92
127
Multiple Bonds
C=C
614
C=N 615
C=0
745
(799 in CO₂)
161
C-H
413
109
C-C
347
154
C-Si 301
186
C-N 305 147
C-0 358
C-P
264
C-S
259
C-F
453
C-CI 339
C-Br 276
C-1
216
143
187
181
133
177
194
213
127
123
N-H 391
N-N
160
N-P
209
N-O
201
N-F 272
N-CI 200
N-Br 243
N-I
159
O-H
O-P
0-0
0-S
467
351
204
265
O-F 190
O-CI 203
0-Br
234
0-1
234
N=N
N=0
0₂
418
607
498
101
146
177
144
139
191
214
222
96
160
148
151
142
164
172
194
122
120
121
Si-H 323 148
Si-Si 226
234
Si-O
368
161
Si-S
226
210
Si-F 565
156
Si-CI 381 204
Si-Br
310
216
Si-1
234
240
P-H
P-Si
P-P
P-F
320
213
200
490
P-CI 331
204
P-Br 272 222
P-I
184
246
142
227
221
156
C=C 839
C=N 891
C=0
1070
121
115
113
Bond Energy Length
S-H 347
S-S
266
S-F
327
S-CI
S-Br
S-1 ~170
271
218
F-F
F-CI
F-Br
159
193
212
F-I
263
CI-CI 243
Cl-Br 215
CI-I
208
Br-Br
Br-1
1-1
193
175
151
N=N 945
N=0 1020
134
204
158
201
225
234
143
166
178
187
199
214
243
228
248
266
110
106
Transcribed Image Text:Calculate the delta H of the combustion of ethane (C2H6) gas with Oxygen gas (02) using average bond energies. * Table 9.2 Average Bond Energles (kJ/mol) and Bond Lengths (pm) Bond Energy Length Bond Energy Length Bond Energy Length Single Bonds H-H 432 H-F 565 H-CI 427 H-Br H-1 363 295 74 92 127 Multiple Bonds C=C 614 C=N 615 C=0 745 (799 in CO₂) 161 C-H 413 109 C-C 347 154 C-Si 301 186 C-N 305 147 C-0 358 C-P 264 C-S 259 C-F 453 C-CI 339 C-Br 276 C-1 216 143 187 181 133 177 194 213 127 123 N-H 391 N-N 160 N-P 209 N-O 201 N-F 272 N-CI 200 N-Br 243 N-I 159 O-H O-P 0-0 0-S 467 351 204 265 O-F 190 O-CI 203 0-Br 234 0-1 234 N=N N=0 0₂ 418 607 498 101 146 177 144 139 191 214 222 96 160 148 151 142 164 172 194 122 120 121 Si-H 323 148 Si-Si 226 234 Si-O 368 161 Si-S 226 210 Si-F 565 156 Si-CI 381 204 Si-Br 310 216 Si-1 234 240 P-H P-Si P-P P-F 320 213 200 490 P-CI 331 204 P-Br 272 222 P-I 184 246 142 227 221 156 C=C 839 C=N 891 C=0 1070 121 115 113 Bond Energy Length S-H 347 S-S 266 S-F 327 S-CI S-Br S-1 ~170 271 218 F-F F-CI F-Br 159 193 212 F-I 263 CI-CI 243 Cl-Br 215 CI-I 208 Br-Br Br-1 1-1 193 175 151 N=N 945 N=0 1020 134 204 158 201 225 234 143 166 178 187 199 214 243 228 248 266 110 106
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