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What is solvation?

What is solvation?

Grade:Upto college level

1 Answers

Ramesh V
70 Points
12 years ago

Solvation:

Its also called dissolution, is the process of attraction and association of molecules of a solvent with molecules or ions of a solute. As ions dissolve in a solvent they spread out and become surrounded by solvent molecules.

an example is shown in figure:A sodium ion solvated by water molecules

For solvation to occur, energy is required to release individual ions from the crystal lattices in which they are present. This is necessary to break the attractions the ions have with each other and is equal to the solid's lattice free energy (the energy released at the formation of the lattice as the ions bonded with each other). The energy for this comes from the energy released when ions of the lattice associate with molecules of the solvent. Energy released in this form is called the free energy of solvation.

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Regards

Ramesh

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