Calculate an approximate heat of combustion for propane (C3H8) in kilojoules per mole by using the bond dissociation energies in the table. (The strength of the 0 = 0 bond is 498 kJ/mol and that of a C = O bond in CO, is 804 kJ/mol.)

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Calculate an approximate heat of combustion for propane (C3H8) in kilojoules per mole by using the bond dissociation energies in the table. (The strength of the 0 = 0 bond is 498 kJ/mol and that of a C = O bond in CO, is 804 kJ/mol.)
Average Bond Dissociation Energies, D (kJ/mol)
H-H
410 N-H
H-C
350
N-C
H-F
450
N-F
H-Cl
330
N-N
H-Br
270
N-O
H-I
240 O-H
H-N
300
O-C
H-O
350
F-F
H-S
260
Multiple covalent bonds
C=C
46 46°F
436 C-H
410 C-C
570 C-F
432 C-Cl
366 C-Br
298
C-I
390 C-N
460
C-O
340
C-S
728
C=C
965 N=N
390
300
270
240
200
460
350
159
945
Transcribed Image Text:Average Bond Dissociation Energies, D (kJ/mol) H-H 410 N-H H-C 350 N-C H-F 450 N-F H-Cl 330 N-N H-Br 270 N-O H-I 240 O-H H-N 300 O-C H-O 350 F-F H-S 260 Multiple covalent bonds C=C 46 46°F 436 C-H 410 C-C 570 C-F 432 C-Cl 366 C-Br 298 C-I 390 C-N 460 C-O 340 C-S 728 C=C 965 N=N 390 300 270 240 200 460 350 159 945
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