One of the chemical reactions that occurs in the formation of photochemical smog is O₃ + NO → NO₂ + O₂. Estimate Δ_rH for this reaction by using appropriate Lewis structures and data from Table 10.3.

Table 10.3

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TABLE 10.3 Some Average Bond Energiesa Bond Energy, kJ mol-¹ Bond Energy, kJ mol-¹ Bond H-H 436 H-C 414 H-N 389 H-O 464 H-S 368 H-F 565 H-Cl 431 H-Br 364 H-I 297 Bond C-C C=C C=C C-N 305 C=N 615 347 611 837 C=N 891 C-O 360 C=O C-Cl 736b 339 Bond Energy, kJ mol-¹ Bond N-N 163 N=N 418 N=N 946 N-O 222 N=O 0-0 0=0 F-F CI-CI Br-Br I-I 590 142 498 159 243 193 151