Hydration of ions in solution is associated with
Hydration of ions in solution is associated with
- A) absorption of heat
- B) reduction of heat
- C) conduction of heat
- D) liberation of heat
Correct Answer: D) liberation of heat
Explanation
Hydration of ions in solution is associated with theliberation of heat.
When an ionic compound dissolves in water, the ions in the compound are surrounded by water molecules. This process is called hydration. During hydration, the water molecules form a shell around the ions, stabilizing them in the solution. This process is exothermic, meaning it releases heat energy.
The reason for the liberation of heat during hydration is the strong electrostatic attraction between the charged ions and the polar water molecules. When this attraction leads to the formation of ion-dipole bonds, energy is released in the form of heat.
In summary, the hydration of ions in solution is associated with the liberation of heat because the formation of ion-dipole bonds between the ions and water molecules releases energy as heat.