An equation for the combustion of propane is given below. C3H8(g) + 502(g) →3CO2(g) + 4H2O(g) 18a. Determine the standard enthalpy change, AHU, for this reaction, using section 11 of the data booklet.

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An equation for the combustion of propane is given below.
C3H8(g) + 50O2(g) →3CO2(g) + 4H2O(g)
18a. Determine the standard enthalpy change, AHU, for this reaction, using
section 11 of the data booklet.
Transcribed Image Text:An equation for the combustion of propane is given below. C3H8(g) + 50O2(g) →3CO2(g) + 4H2O(g) 18a. Determine the standard enthalpy change, AHU, for this reaction, using section 11 of the data booklet.
11. Bond enthalpies and average bond enthalpies
at 298 K
Single bonds (kJ mol-1)
Br
C
CI
H.
Si
Br
193
285
219
249
366
178
201
264
218
330
C
285
346
324
492
414
228
286
358
264
289
307
Cl
219
324
242
255
431
211
192
206
322
271
400
249
492
255
159
567
280
278
191
490
327
597
H.
366
414
431
567
436
298
391
463
322
364
323
I
178
228
211
280
298
151
201
184
234
286
192
278
391
158
214
201
358
206
191
463
201
214
144
363
466
264
264
322
490
322
184
363
198
218
289
271
327
364
266
293
Si
330
307
400
597
323
234
466
293
226
Multiple bonds (kJ mol-1)
C=C 614
C=N 890
NEN 945
C=C 839
C=O 804
N=O 587
C=C 507
C=S 536
O=O 498
(in benzene)
C=N 615
N=N 470
S=S 429
Transcribed Image Text:11. Bond enthalpies and average bond enthalpies at 298 K Single bonds (kJ mol-1) Br C CI H. Si Br 193 285 219 249 366 178 201 264 218 330 C 285 346 324 492 414 228 286 358 264 289 307 Cl 219 324 242 255 431 211 192 206 322 271 400 249 492 255 159 567 280 278 191 490 327 597 H. 366 414 431 567 436 298 391 463 322 364 323 I 178 228 211 280 298 151 201 184 234 286 192 278 391 158 214 201 358 206 191 463 201 214 144 363 466 264 264 322 490 322 184 363 198 218 289 271 327 364 266 293 Si 330 307 400 597 323 234 466 293 226 Multiple bonds (kJ mol-1) C=C 614 C=N 890 NEN 945 C=C 839 C=O 804 N=O 587 C=C 507 C=S 536 O=O 498 (in benzene) C=N 615 N=N 470 S=S 429
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