Question

What is the amount of energy required to break the carbon-hydrogen bond in a methane molecule (CH4) if the bond dissociation energy (BDE) of C-H is 413 kJ/mol?

Answer 1

To calculate the energy required to break a single carbon-hydrogen bond in a methane molecule  CH4 , we can use the given bond dissociation energy  BDE  of the C-H bond.BDE of C-H bond = 413 kJ/molSince there are 4 C-H bonds in a methane molecule, we need to consider only one of them. Therefore, the energy required to break one C-H bond in a methane molecule is the same as the BDE of the C-H bond.Energy required to break one C-H bond in CH4 = 413 kJ/mol