Description molecular Ice cube and water glass and what accurs
An ice cube and water glass are both made up of molecules of water. In a liquid like water, the molecules are in constant motion and are able to slide past each other, giving water its fluidity. When the temperature drops below freezing point, the molecules slow down and begin to stick together in a crystalline structure, which is the solid state of water called ice.
When an ice cube is placed in a glass of water, the temperature of the water is high enough to prevent the ice from remaining a solid block. As the ice cube begins to melt, heat is transferred from the water to the ice in order to melt it, and the ice absorbs this heat energy to overcome the energy required to break apart its molecular structure.
Eventually, the ice cube will melt completely and the water in the glass will reach equilibrium at the same temperature throughout.