Using bond enthalpy terms from Tables 14.2 and 15.3, estimate values of r H for the
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Using bond enthalpy terms from Tables 14.2 and 15.3, estimate values of ΔrHº for the following reactions
(a) 2N2 → N4 (tetrahedral structure);
(b) 2P2 → P4 (tetrahedral structure);
(c) 2C2H2 → C4H4 (tetrahedrane, with a tetrahedral C4 core).
Table 14.2.
Table 15.3.
Transcribed Image Text:
C-C_C=CC=C_C-H C-F C-CI C-0_C=0 598 813 416 485 327 359 806 346 Si-Si 226 Ge-Ge 186 Sn-Sn 151 Si-H Si-F Si-Cl Si-O Si=0 582 391 466 326 642 Ge-H Ge-F 289 465 342 350 Ge-Cl Ge-0 Sn-H 251 Sn-Cl 320 Pb-Cl 244
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