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Table of ΔHө of bond energies (energy to break a bond) at 298K (units are kJ mol-1). :
Single Bonds:
|
|
H
|
C
|
N
|
O
|
F
|
P
|
S
|
Cl
|
Br
|
I
|
|
H
|
432
|
411
|
386
|
459
|
565
|
322
|
363
|
428
|
362
|
294
|
|
C
|
|
346
|
305
|
358
|
485
|
264
|
272
|
327
|
285
|
213
|
|
N
|
|
|
167
|
201
|
283
|
209
|
171
|
201
|
243
|
254
|
|
O
|
|
|
|
142
|
190
|
335
|
215
|
218
|
201
|
201
|
|
F
|
|
|
|
|
155
|
490
|
284
|
249
|
263
|
278
|
|
P
|
|
|
|
|
|
213
|
230
|
326
|
264
|
184
|
|
S
|
|
|
|
|
|
|
268
|
265
|
217
|
198
|
|
Cl
|
|
|
|
|
|
|
|
240
|
216
|
208
|
|
Br
|
|
|
|
|
|
|
|
|
190
|
175
|
|
I
|
|
|
|
|
|
|
|
|
|
149
|
Double Bonds:
|
|
N
|
O
|
C
|
S
|
|
N
|
418
|
607
|
615
|
|
|
O
|
|
494
|
799
|
533
|
|
C
|
|
|
602
|
573
|
|
S
|
|
|
|
425
|
Triple Bonds:
|
|
N
|
C
|
O
|
|
N
|
942
|
887
|
|
|
C
|
|
835
|
1072
|
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