Problem: Calculate ΔHo for the following reaction using the given bond dissociation energiesCH4(g) + 2O2(g) → CO2(g) + 2H2O(g)BOND                                     ΔH    o (kJ/mol)O-O                                               142H-O                                               459C-H                                               411C=O                                              799O=O                                              498C-O                                               358Is the reaction endothermic or exothermic?

FREE Expert Solution
85% (371 ratings)
FREE Expert Solution

When bond energies/enthalpies are involved:           

ΔHrxn = ΔHreactants - ΔHproducts

85% (371 ratings)
Problem Details

Calculate ΔHo for the following reaction using the given bond dissociation energies

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

BOND                                     ΔH    o (kJ/mol)

O-O                                               142

H-O                                               459

C-H                                               411

C=O                                              799

O=O                                              498

C-O                                               358

Is the reaction endothermic or exothermic?

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