I would have to correct you! Water doesn't "melt" as it is in its liquid state, it can only evaporate and turn into a gas.
Water evaporates at 100 degrees Celsius!
Water freezes at 0 C!
Water is unique in that its melting and freezing points are very close to each other, unlike most other substances where the melting and freezing points can be significantly different. This is due to the fact that water molecules are polar and are held together by hydrogen bonds, which creates a lattice-like structure in ice.
When water freezes, its molecules become more ordered and structured, resulting in the formation of a crystalline solid with a lower density than the liquid form. This is why ice floats on water. The hydrogen bonds between water molecules in ice are more stable and rigid, which requires more energy to break and melt the ice.
On the other hand, when water melts, energy is added to break the hydrogen bonds between water molecules, causing the solid to transition to a liquid. This results in a decrease in the order and structure of the water molecules, resulting in an increase in entropy.
In summary, the melting and freezing points of water are crucial properties that allow water to exist in all three states of matter (solid, liquid, and gas) on Earth. These points are determined by the unique properties of water molecules and their interactions with each other, making water an essential and versatile substance for life.
I hope this helped!
~~~Harsha~~~