Diffenent between binding energy and formation energy

In summary, the formation energy is the energy penalty required to form a defect, while the binding energy is a measure of the thermodynamic stability of a defect complex. Both play important roles in determining the concentration and formation of defects in solids.
  • #1
kaypu
2
0
Dear friend:

i'm a fresh man, some concepts puzzle me. As the title says, can anybody tell me what's the different between the binding energy and formation energy?

Regards
 
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  • #2
I will take defects in solids as an example (although other examples are applicable). The formation energy applies to isolated non-composite (for example isolated vacancy) defects as well as to defect clusters or (complex or composite , name it as you wish, but as an example the complex formed between three vacancies ). This formation energy expresses the energy penalty that has to be paid in order to form the defect. Thus, it is the quantity that determines the concentration of a particular defect.

The binding energy is applicable to defect complexes. It is a measure for the thermodynamic stability of the complex against dissociation into its constituents. The complex whose binding energy is such that it is not stable thermodynamically (-ve or +ve depending on the sign convention you wish) should not form under equilibrium conditions.
 
  • #3
Thank you so much
 

1. What is the difference between binding energy and formation energy?

Binding energy is the energy required to break apart a nucleus or molecule into its individual components, while formation energy is the energy released when a nucleus or molecule is formed from its individual components.

2. How are binding energy and formation energy related?

Binding energy and formation energy are inversely related. This means that as the binding energy increases, the formation energy decreases, and vice versa. This is because a higher binding energy indicates a stronger bond, which requires more energy to break, resulting in a lower formation energy.

3. How are binding energy and formation energy measured?

Binding energy is typically measured in units of electron volts (eV) or Joules (J), while formation energy is measured in kJ/mol. Both energies are calculated using the mass defect and the mass-energy equivalence formula, E=mc².

4. What factors affect the value of binding energy and formation energy?

The main factor that affects the value of binding energy and formation energy is the strength of the bond between the particles. Other factors include the number of particles involved, the mass of the particles, and the type of particles.

5. How are binding energy and formation energy used in chemistry and physics?

Binding energy and formation energy are used in various fields of chemistry and physics to understand the stability of atoms, molecules, and nuclei. They are also used in nuclear reactions, such as fusion and fission, and in the study of energy production and storage.

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