Chapter 20, Problem 14RQ

To determine

The amount of energy released in kilojoules, if it takes $436\text{ kJ}$ to break a bond and when the same bond is formed.

Answer to Problem 14RQ

If it takes $436\text{ kJ}$ to break a bond, $436\text{ kJ}$ energy is released during the formation of the same bond.

Explanation of Solution

The amount of energy required in a chemical reaction to break a bond is termed as bond energy. The bond energy is the amount of energy used to break the bond.

The same amount of energy is released if the same bond is formed.

Thus, if $436\text{ kJ}$ of energy is required to break the bond, the same amount of energy that is $436\text{ kJ}$ of energy is released if the same bond is formed.

Conclusion:

Therefore, $436\text{ kJ}$ energy is released during the formation of a bond if it takes $436\text{ kJ}$ to break the same bond.