Use the molar bond enthalpy data in the table to estimate the value of Δ?rxnΔHrxn for the equation

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Chapter6: Thermochemisty
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Problem 6.120QP: Sodium carbonate, Na2CO3, is used to manufacture glass. It is obtained from sodium hydrogen...
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Use the molar bond enthalpy data in the table to estimate the value of Δ?rxnΔHrxn for the equation

 

CCl4(g)+2F2(g)⟶CF4(g)+2Cl2(g)CCl4(g)+2F2(g)⟶CF4(g)+2Cl2(g)

 

The bonding in the molecules is shown here.

 

Average molar bond enthalpies. (?)(H)

Bond kJ·mol–1 Bond kJ·mol–1
O−HO−H 464 C≡NC≡N 890
O−OO−O 142 N−HN−H 390
C−OC−O 351 N−NN−N 159
O=OO=O 502 N=NN=N 418
C=OC=O 730 N≡N 945
C−CC−C 347 F−FF−F 155
C=CC=C 615 Cl−ClCl−Cl 243
C≡CC≡C 811 Br−BrBr−Br 192
C−HC−H 414 H−HH−H 435
C−FC−F 439 H−FH−F 565
C−ClC−Cl 331 H−ClH−Cl 431
C−BrC−Br 276 H−BrH−Br 368
C−NC−N 293 H−SH−S 364
C=NC=N 615 S−SS−S 225
Δ?rxn=
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