Question

What is the bond dissociation energy of methane (CH4)? Use the given bond energies: C-H bond energy = 413 kJ/mol and C-C bond energy = 348 kJ/mol.

Answer 1

The bond dissociation energy of methane  CH4  can be calculated using the given C-H bond energy. Methane has 4 C-H bonds, and we are given that the energy of one C-H bond is 413 kJ/mol. To find the total bond dissociation energy of methane, we simply multiply the energy of one C-H bond by the number of C-H bonds in methane:Bond dissociation energy of CH4 =  C-H bond energy    number of C-H bonds = 413 kJ/mol  4= 1652 kJ/molSo, the bond dissociation energy of methane  CH4  is 1652 kJ/mol.