Consider the complete combustion of butane, C4H10, for use in hand held lighters. Write the complete balanced reaction with phase symbols. Assume water in the gas 5. a. phase is produced. b. Calculate the AHrxn for the reaction you wrote using average bond energies. AHrxn = En:AHbonds broken (reactants) - EnpAHbonds formed (products) Table 9.2 Average Bond Energles (kJ/mol) and Bond Lengths (pm) Bond Energy Length Bond Energy Length Bond Energy Length Bond Energy Length Single Bonds H-H Si-H Si-Si S-H S-S S-F 74 N-H 347 134 323 226 368 432 391 101 148 H-F 5ర 92 N-N 160 146 234 266 204 H-CI 427 127 N-P 209 177 Si-O 161 327 158 H-Br 363 271 201 Si-S Si-F 141 N-O 201 144 226 210 S-CI S-Br S-I H-I 295 161 N-F 272 139 565 156 218 225 -170 Si-CI Si-Br Si-I N-CI 200 191 381 204 234 C-H 413 109 N-Br 243 214 310 216 C-C 347 154 N-1 159 222 234 240 F-F 159 143 C-Si 301 186 F-CI 193 166 F-Br 212 178 0-H 0-P C-N 305 147 467 96 P-H 320 142 C-O 358 143 351 160 P-Si 213 227 F-I 263 187 CI-CI CI-Br 243 215 208 199 214 264 187 0-0 204 148 P-P 200 221 156 151 142 C-S 259 181 0-S 265 P-F 490 0-F P-CI 331 204 C-I 243 190 203 C-F 453 133 C-CI 339 177 0-CI 164 P-Br 272 222 Br-Br 193 228 246 Br-I 175 248 0-Br 0-I C-Br 276 194 234 172 P-1 184 C-I 216 213 234 194 1-1 151 266 Multiple Bonds NN NO N N CC 945 110 839 891 1070 614 134 418 122 121 C-N 615 127 607 120 CN 115 1020 106 745 123 498 121 CO 113 799 in CO2)
Consider the complete combustion of butane, C4H10, for use in hand held lighters. Write the complete balanced reaction with phase symbols. Assume water in the gas 5. a. phase is produced. b. Calculate the AHrxn for the reaction you wrote using average bond energies. AHrxn = En:AHbonds broken (reactants) - EnpAHbonds formed (products) Table 9.2 Average Bond Energles (kJ/mol) and Bond Lengths (pm) Bond Energy Length Bond Energy Length Bond Energy Length Bond Energy Length Single Bonds H-H Si-H Si-Si S-H S-S S-F 74 N-H 347 134 323 226 368 432 391 101 148 H-F 5ర 92 N-N 160 146 234 266 204 H-CI 427 127 N-P 209 177 Si-O 161 327 158 H-Br 363 271 201 Si-S Si-F 141 N-O 201 144 226 210 S-CI S-Br S-I H-I 295 161 N-F 272 139 565 156 218 225 -170 Si-CI Si-Br Si-I N-CI 200 191 381 204 234 C-H 413 109 N-Br 243 214 310 216 C-C 347 154 N-1 159 222 234 240 F-F 159 143 C-Si 301 186 F-CI 193 166 F-Br 212 178 0-H 0-P C-N 305 147 467 96 P-H 320 142 C-O 358 143 351 160 P-Si 213 227 F-I 263 187 CI-CI CI-Br 243 215 208 199 214 264 187 0-0 204 148 P-P 200 221 156 151 142 C-S 259 181 0-S 265 P-F 490 0-F P-CI 331 204 C-I 243 190 203 C-F 453 133 C-CI 339 177 0-CI 164 P-Br 272 222 Br-Br 193 228 246 Br-I 175 248 0-Br 0-I C-Br 276 194 234 172 P-1 184 C-I 216 213 234 194 1-1 151 266 Multiple Bonds NN NO N N CC 945 110 839 891 1070 614 134 418 122 121 C-N 615 127 607 120 CN 115 1020 106 745 123 498 121 CO 113 799 in CO2)
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 2RQ: Consider the following potential energy diagrams for two different reactions. Which plot represents...
Related questions
Concept explainers
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
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
100%
Transcribed Image Text:Consider the complete combustion of butane, C4H10, for use in hand held lighters.
Write the complete balanced reaction with phase symbols. Assume water in the gas
5.
phase is produced.
b.
Calculate the AHxn for the reaction you wrote using average bond energies.
AHrxn = En AHbonds broken (reactants) - EnpAHbonds formed (products)
Table 9.2
Average Bond Energles (kJ/mol) and Bond Lengths (pm)
Bond Energy Length
Bond
Energy Length
Bond Energy Length
Bond Energy Length
Single Bonds
432
565
H-H
74
N-H
391
101
Si-H
323
148
S-H
347
134
266
327
H-F
92
N-N
160
Si-Si
226
234
S-S
204
146
177
H-CI
H-Br
427
127
N-P
209
Si-O
368
161
S-F
158
363
141
N-O
201
144
Si-S
226
210
S-CI
271
201
H-I 295
161
N-F
272
139
Si-F
565
156
S-Br
218
225
N-CI
381
204
S-I
-170
234
200
243
191
Si-CI
C-H
413
109
N-Br
214
Si-Br
310
216
F-F 159
193
212
143
166
C-C
347
154
N-I
159
222
Si-I
234
240
C-Si
301
186
F-CI
C-N
305
147
467
96
P-H
320
142
F-Br
178
358
143
0-P
351
160
P-Si
213
227
F-I
263
187
CI-CI
199
200
490
331
243
C-Br 215
208
221
187
181
204
148
151
P-P
264
259
0-S
265
P-F
156
214
243
228
453
133
0-F
190
142
P-CI
204
C-I
272
222
Br-Br
193
-CI
C-Br
339
177
0-CI
203
164
P-Br
276
194
0-Br
234
172
P-I
184
246
Br-I
175
248
C-I
216
213
234
194
151
266
Multiple Bonds
CC
NN
NO
945
1020
110
839
891
1070
614
134
418
122
121
N-0
607
120
CN
115
106
615
745
CN
127
123
O2
498
121
113
(799 in CO2)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:
9781285199023
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning