What is the total amount of energy needed to break the 4 C-H bonds in 1 molecule of the reactant CH4?
1,724 kJ/mol
b.
3,036 kJ/mol
c.
- 412 kJ/mol
d.Endothermic
e.
1,656 kJ/mol
f.
968 kJ/mol
g.Exothermic
h.
2,624 kJ/mol
i.
1,312 KJ/mol
To break the 4 C-H bonds in one molecule of CH4, we need to determine the bond energy of the C-H bond and multiply it by the number of bonds.
The bond energy of a C-H bond is approximately 413 kJ/mol. Therefore, 4 C-H bonds would require 4 * 413 kJ/mol = 1,652 kJ/mol of energy.
Therefore, the correct answer is e. 1,656 kJ/mol.