Using Table 8.4, estimate ÎH for each of the following gas-phase reactions: a. b. c. C-C H-O-C-C-O-H

Using Table 8.4, estimate ΔH for each of the following gas-phase reactions:
a.

b.

c.

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C-C H-O-C-C-O-H с-с НН НН Cl TABLE 8.4 Single Bonds e Average Bond Enthalpies (kJ/mol) C H C-C C-N с_o C-F C CI C Br 413 348 293 358 485 328 276 240 259 N H N-N 391 163 201 272 200 243 463 146 190 203 234 F-F 155 O-O CI-F CI-CI 253 242 O Cl N F N-CI N Br 237 218 193 S--H BrCl 436 SF 567 431 366 299 339 327 253 218 266 S-CI SBr CS H-Cl H Br I- Cl I Br 208 175 151 Si-H SiSi SiC Si-O SiCl 323 226 301 368 464 Multiple Bonds с-с 614 839 615 891 799 1072 418 O 941 607 S O 495 C-N N-O 523 418 S-S