Use the bond enthalpies in Tables 4E 2 and 4E 3 to estimate the reaction enthalpy for (a) 3 CH(g) CH(g) (b) CH4(g) 4 Cl(g) CCl4(g) 4 HCl(g) (c) CH4(g) CCl4(g) CHCl3(g) CH3CI(g)...

Use the bond enthalpies in Tables 4E.2 and 4E.3 to estimate the reaction enthalpy for (a) 3

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Use the bond enthalpies in Tables 4E.2 and 4E.3 to estimate the reaction enthalpy for (a) 3 CH(g) C6H6(g) (b) CH4(g) + 4 Cl(g) CCl4(g) + 4 HCl(g) (c) CH4(g) + CCl4 (g) CHCl3(g) + CHCl(g)

TABLE 4E.2 Bond Enthalpies of Diatomic Molecules Molecule H N 0 CO F Cl Br 1 HF HCI HBr HI AHB/(kJ.mol-) 436

TABLE 4E.3 Mean Bond Enthalpies Bond C-H C-C C=C CC* C=C C-N C-F C-Cl C-Br AHB/(kJ.mol-) 412 348 612 518 837

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Use the bond enthalpies in Tables 4E.2 and 4E.3 to estimate the reaction enthalpy for (a) 3

Question:

(a) 3 C₂H₂(g) →CH(g) (b) CH4(g) + 4 Cl₂(g) → CCl4(g) + 4 HCl(g) (c) CH4(g) + CCl4(g) → CHCl3(g) + CH3CI(g)

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Chemical Principles The Quest For Insight

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