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what is hydration energy.and what is hydrated radii.? how size of ion affect the hydration radii

what is hydration energy.and what is hydrated radii.?
how size of ion affect the hydration radii
 
 

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago
Dear student
 

Hydration energy is the amount of energy released when a species gets surrounded by water due to electrostatic attraction.

Example: a positive ion will attract the oxygen (negative part) of water and will get surrounded by it in a spherical manner.

This interaction leads to evolution of energy.

Hydration intensity depends on the charge density of a species. So, among two ions with same charge, the one with a smaller radius will have more hydration energy.

Generally in groups where size trend is even and size increases down the group (S block), hydration energy decreases down the group.

 

Regards

Arun (askIITians forum expert)

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