For the following chemical reactions, calculate the total energy released and absorbed in order to determine whether the

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For The Following Chemical Reactions Calculate The Total Energy Released And Absorbed In Order To Determine Whether The 1 (38.48 KiB) Viewed 16 times

For the following chemical reactions, calculate the total energy released and absorbed in order to determine whether the chemical reactions are endothermic or exothermic. Drawing out structural formulae and using the table below will help. Remember that when bonds are formed, energy is released, and when bonds are broken, energy is absorbed. Table 15.1 Bond energies in kJ/mol at 298 K Bond Bond energy H-Br H-Cl H-I H-O H-N H-S H-H Br-Br CI-CI 1 2H₂O → 2H₂ + O₂ 366 432 299 463 391 360 436 193 242 Bond 1-1 N-N 0-0 C-C C-H C-O C-CI C-Br C-F Bond energy 151 163 146 348 413 358 339 285 485 Bond CO in CO₂ CO in CO 00 in 0, 00 in 0, NN in N₂ CC in C,H CC in C₂H₂ Bond energy 805 1080 498 302 945 610 835