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Bond Energies

This problem provides drill in calculating enthalpies of reaction from bond energies.

Results Total Correct Score%
Web Author: Dr. Walter S. Hamilton

Bond Energies

Single Bonds
H C N O S F Cl Br I
H 432                
C 411 346              
N 386 305 167
O 459 358 201 142          
S 363 272 --- --- 226        
F 565 485 283 190 284 155      
Cl 428 327 313 218 255 249 240    
Br 362 285 --- 201 217 249 216 190  
I 295 213 --- 201 --- 278 208 175 149

Multiple Bonds
C=C 602 C=N 615 C=O 745(799 in CO2
CC 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