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what is the difference between the cohesive energy and lattice energy ? please write all solution...

what is the difference between the cohesive energy and lattice energy ?

please write all solution and step by step and cleae solution this material is solid physics .

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Answer :

Cohesive energy: It is the energy that must be supplied to the solid to separate its constituents into neutral free atoms at rest and at infinite separation with the same electronic configuration.

There are three forces responsible for the cohesion of a solid:

  1. Coulomb force: This is the major contribution to the cohesion of a solid; it is the attractive force between electrons and the nuclei.
  2. Magnetic force: This has a weak contribution to cohesion.
  3. Gravitational force: It has a negligible contribution to cohesion.

.

The lattice energy of a solid: It is the energy that must be supplied to an ionic crystal to separate its constituents into free ions at rest and at infinite separation.

Lattice energy is the amount of energy required to completely separate one mole of a solid crystalline ionic compound into it's constituent gaseous ions. The term lattice energy normally refers to electrostatic (coulombic) interactions between cations and anions in an ionic lattice.

genius_generous answered 2 years ago
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