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Bond Energies
This problem provides drill in calculating enthalpies of reaction from bond energies.
Web Author: Dr. Walter S. Hamilton
Single Bonds
| H |
432 |
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| C |
411 |
346 |
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| N |
386 |
305 |
167 |
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| O |
459 |
358 |
201 |
142 |
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| S |
363 |
272 |
--- |
--- |
226 |
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| F |
565 |
485 |
283 |
190 |
284 |
155 |
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| Cl |
428 |
327 |
313 |
218 |
255 |
249 |
240 |
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| Br |
362 |
285 |
--- |
201 |
217 |
249 |
216 |
190 |
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| I |
295 |
213 |
--- |
201 |
--- |
278 |
208 |
175 |
149 |
Multiple Bonds
| C=C |
602 |
C=N |
615 |
C=O |
745(799 in CO2 |
C C |
835 |
CN |
887 |
CO |
1072 |
| N=N |
418 |
N=O |
607 |
S=O (in SO2) |
532 |
| NN |
942 |
O2 |
494 |
S=O (in SO3) |
469 |