# Problem: The energy of the C—C bond is 347 kJ/mol, and that of the Cl—Cl bond is 243 kJ/mol. Which of the following values might you expect for the C—Cl bond energy? Explain.(a) 590 kJ/mol (sum of the values given)(b) 104 kJ/mol (difference of the values given)(c) 295 kJ/mol (average of the values given)(d) 339 kJ/mol (greater than the average of the values given)

###### FREE Expert Solution

We have to estimate the bond energy of the C-Cl bond based on the given bond energies for C-C and Cl-Cl bonds.

We first need some definitions:

Homonuclear bond: A bond that is formed between two identical atoms such as C-C bond or the Cl-Cl bond.

Heteronuclear bond:A bond that is formed between two different atoms such as the C-Cl bond or the O-H bond.

The bond energy of a heteronuclear bond is usually greater than the average of the homonuclear bonds made by the two atoms in the covalent bond.

90% (119 ratings)
###### Problem Details

The energy of the CC bond is 347 kJ/mol, and that of the Cl—Cl bond is 243 kJ/mol. Which of the following values might you expect for the C—Cl bond energy? Explain.

(a) 590 kJ/mol (sum of the values given)
(b) 104 kJ/mol (difference of the values given)
(c) 295 kJ/mol (average of the values given)
(d) 339 kJ/mol (greater than the average of the values given)