When a liquid freezes, it changes into a solid state. This transition occurs as the temperature of the liquid decreases to the point where its molecules lose energy and slow down, forming a solid structure with a fixed shape and volume.
During freezing, the particles in the liquid come together and arrange themselves in a regular pattern, creating a solid with a specific geometric arrangement. This process involves the release of heat energy, known as latent heat of fusion, as the molecules lose energy to form a stable solid structure.
In summary, when a liquid freezes, it transforms into a solid state due to a decrease in temperature causing the molecules to slow down and form a fixed structure with a specific arrangement.