Estimate the AH° for the combustion of one mole of butane in kJ at 25°C using the table of bond energies provided below. Just enter a number (no units). Table 9.2 Average Bond Energles (kl/mol) and Bond Lengths (pm) Bond Energy Length Bond Energy Length Bond Energy Length Bond Energy Length Single Bonds H-H 432 74 N-H 391 101 Si-H 323 148 S-H 347 134 H-F 565 92 N-N 160 146 Si-Si 226 234 S-S 266 204 H-CI 427 127 N-P 209 177 Si-O 368 161 S-F 327 158 H-Br 363 141 N-O 201 144 Si-S 226 210 S-a 271 201 H-I 295 161 N-F 272 139 Si-F 565 156 S-Br 218 225 N-CI 200 191 Si-CI 381 204 S-I -170 234 C-H 413 109 N-Br 243 214 Si-Br 310 216 C-C 347 154 N-I 159 222 Si-I 234 240 F-F 159 143 C-Si 301 186 F-CI 193 166 C-N 305 147 0-H 467 96 P-H 320 142 F-Br 212 178 C-0 358 143 0-P 351 160 P-Si 213 227 F-I 263 187 C-P 264 187 0-0 204 148 P-P 200 221 CI-a 243 199 C-S 259 181 0-S 265 151 P-F 490 156 Cl-Br 215 214 C-F 453 133 0-F 190 142 P-CI 331 204 CI-I 208 243 C-CI 339 177 0-CI 203 164 P-Br 272 222 Br-Br 193 228 C-Br 276 194 0-Br 234 172 P-I 184 246 Br-I 175 248 C-I 216 213 0-I 234 194 I-I 151 266 Multiple Bonds C=C 614 134 N=N 418 122 839 121 N=N 945 110 C=N 615 127 N=0 607 120 C=N 891 115 N=O 631 106 C=0 745 123 498 121 C=0 1070 113 (799 in CO,)
Estimate the AH° for the combustion of one mole of butane in kJ at 25°C using the table of bond energies provided below. Just enter a number (no units). Table 9.2 Average Bond Energles (kl/mol) and Bond Lengths (pm) Bond Energy Length Bond Energy Length Bond Energy Length Bond Energy Length Single Bonds H-H 432 74 N-H 391 101 Si-H 323 148 S-H 347 134 H-F 565 92 N-N 160 146 Si-Si 226 234 S-S 266 204 H-CI 427 127 N-P 209 177 Si-O 368 161 S-F 327 158 H-Br 363 141 N-O 201 144 Si-S 226 210 S-a 271 201 H-I 295 161 N-F 272 139 Si-F 565 156 S-Br 218 225 N-CI 200 191 Si-CI 381 204 S-I -170 234 C-H 413 109 N-Br 243 214 Si-Br 310 216 C-C 347 154 N-I 159 222 Si-I 234 240 F-F 159 143 C-Si 301 186 F-CI 193 166 C-N 305 147 0-H 467 96 P-H 320 142 F-Br 212 178 C-0 358 143 0-P 351 160 P-Si 213 227 F-I 263 187 C-P 264 187 0-0 204 148 P-P 200 221 CI-a 243 199 C-S 259 181 0-S 265 151 P-F 490 156 Cl-Br 215 214 C-F 453 133 0-F 190 142 P-CI 331 204 CI-I 208 243 C-CI 339 177 0-CI 203 164 P-Br 272 222 Br-Br 193 228 C-Br 276 194 0-Br 234 172 P-I 184 246 Br-I 175 248 C-I 216 213 0-I 234 194 I-I 151 266 Multiple Bonds C=C 614 134 N=N 418 122 839 121 N=N 945 110 C=N 615 127 N=0 607 120 C=N 891 115 N=O 631 106 C=0 745 123 498 121 C=0 1070 113 (799 in CO,)
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
Transcribed Image Text:Estimate the AH° for the combustion of one mole of butane in kJ at 25°C using the table of bond
energies provided below.
Just enter a number (no units).
Table 9.2
Average Bond Energles (kl/mol) and Bond Lengths (pm)
Bond Energy Length
Bond Energy Length
Bond Energy Length
Bond
Energy Length
Single Bonds
H-H
432
74
N-H
391
101
Si-H
323
148
S-H
347
134
H-F
565
92
N-N
160
146
Si-Si
226
234
S-S
266
204
H-CI
427
127
N-P
209
177
Si-O
368
161
S-F
327
158
H-Br
363
141
N-O
201
144
Si-S
226
210
S-a
271
201
H-I
295
161
N-F
272
139
Si-F
565
156
S-Br
218
225
N-CI
200
191
Si-CI
381
204
S-I
-170
234
C-H
413
109
N-Br
243
214
Si-Br
310
216
C-C
347
154
N-I
159
222
Si-I
234
240
F-F
159
143
C-Si
301
186
F-C
193
166
C-N
305
147
0-H
467
96
P-H
320
142
F-Br
212
178
C-0
358
143
0-P
351
160
P-Si
213
227
F-I
263
187
C-P
264
187
0-0
204
148
P-P
200
221
CI-a
243
199
C-S
259
181
0-S
265
151
P-F
490
156
CI-Br
215
214
C-F
453
133
0-F
190
142
P-CI
331
204
CI-I
208
243
C-CI
339
177
0-CI
203
164
P-Br
272
222
Br-Br
193
228
C-Br
276
194
0-Br
234
172
P-I
184
246
Br-I
175
248
C-I
216
213
0-I
234
194
I-I
151
266
Multiple Bonds
C=c
614
134
N=N
418
122
839
121
N=N
945
110
C=N
615
127
N=0
607
120
C=N
891
115
N=O
631
106
C=0
745
123
498
121
C=0
1070
113
(799 in CO,)
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