Calculate the bond dissociation energy in the following equation:CH₄(g) + 2O₂(g) -- CO₂(g) + 2H₂0 (g)Given the following:DH_f° C-H = 87 Kcal/molDH_f° O=O = 118 Kcal/molDH_f° C=O = 178 Kcal/molDH_f° O-H = 111 Kcal/mol

Question

Calculate the bond dissociation energy in the following equation:CH₄(g) + 2O₂(g) --> CO₂(g) + 2H₂0 (g)Given the following:DH_f° C-H = 87 Kcal/molDH_f° O=O = 118 Kcal/molDH_f° C=O = 178 Kcal/molDH_f° O-H = 111 Kcal/mol

Quizplus · Accepted Answer

DH_diss° = [energy of bonds broken] - [energy of bonds formed] In the equation, you have the following bonds: 4C-H (CH₄) + 2 O=O --> O=C=O + 2 H-O-H ***OR*** 4C-H + 2O=O --> 2 C=O + 4 O-H Using the heats of formation provided, the equation becomes DH_diss° = [(4*87) + (2*118)] - [(2*178) +(4*111)] = -216KCal

Calculate the Bond Dissociation Energy in the Following Equation:CH4(g)

Calculate the Bond Dissociation Energy in the Following Equation:CH₄(g)