What is bond stabilising energy ?

Answer

### Step-by-Step Solution:

1. **Understanding Bond Stabilizing Energy**:
- Bond stabilizing energy refers to the energy associated with the stabilization of chemical bonds in a molecule. It is an important concept in understanding molecular stability and reactivity.

2. **Defining Delocalized and Localized Bonds**:
- In chemistry, localized bonds are those where the electron density is concentrated between two specific atoms, while delocalized bonds involve electron density that is spread over multiple atoms, often seen in resonance structures.

3. **Energy Comparison**:
- The bond stabilizing energy can be defined as the difference in energy between a delocalized chemical structure and a theoretical structure that has localized bonds.

4. **Mathematical Representation**:
- The bond stabilizing energy can be mathematically expressed as:
\[ \text{Bond Stabilizing Energy} = E_{\text{localized}} - E_{\text{delocalized}} \]
- Here, \(E_{\text{localized}}\) is the theoretical energy of a structure with localized bonds, and \(E_{\text{delocalized}}\) is the energy of the actual delocalized structure.

5. **Obtaining the Energy Values**:
- The theoretical energy of the localized structure can be calculated or estimated using chemical classification methods. The experimental heat of formation of the compound provides the energy of the delocalized structure.

6. **Final Definition**:
- Therefore, bond stabilizing energy can be defined as the amount by which the energy of a delocalized chemical structure is less than the theoretical energy of a structure with localized bonds. It is obtained by subtracting the experimental heat of formation from the theoretical energy.