Question

Water shows his abnormlous behaviour at _ degree celcius??? and also answer more about it..​

Answer 1

Answer:

The packing structure of ice is actually very inefficient, there is a lot of empty space between the molecules so the density of ice is less than the density of water.

Below 4° C, those little clumps of proto-ice get numerous enough that they make the overall liquid density begin to drop, rather than increase as had been happening as the temperature dropped from higher down to 4.

Explanation:

Water has very strong intermolecular forces called hydrogen bonds. These hold the molecules together and contribute to the rather high freezing and boiling point of such a light molecule as water.

Those hydrogen bonds are forming and breaking all the time as the water molecules in liquid form tumble and move over each other. The hotter the water, the shorter time the Hydrogen bonds last.

As the temperature reaches 4° Celcius, they are hanging around long enough that they start holding the molecules in place, even briefly. at this temperature, microscopic amounts of water starts clumping together briefly in the same kind of packing structure as ice. Because the packing structure of ice is actually very inefficient, there is a lot of empty space between the molecules so the density of ice is less than the density of water.

Hope it helps you!!