Please show full work and reasoning, thanks! Bond Energies and Heat of Reaction

Question

Please show full work and reasoning, thanks!

Bond Energies and Heat of Reaction Use the given bond energy values to estimate H for the following gas-phase reaction H2N CH3 H3C H3C CH3 CH3 H3C CH3 (Simple energy units required for the answer.) H-H = 432 H-N = 391 C=C=614 H-Br-363 H-O = 467 Dc-c = 839 615 DCzN-891 Un-c = 413 C-C = 34 DC-N = 305 DC-o = 358 Dc-o-1072 DN=N = 418 Do=o = 495 DBrBr = 193 Del-Cl = 239 De=N= Dc-o=745 DC-Br=276 NEN=941 201 DC-Cl=339 DCzO (CO2)=799 DN-N=160 0-0 = 146 DN=0 = 607 DH-Cl=427 D DN-O

Explanation / Answer

DHrxn =(2*DN-H+1*DC=O)-(2*dO-H+1*DC=N)

      = (2*391+1*745)-(2*467+1*615)

      = -22 Kj/mol

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