Changing a substance from solid into a liquid is called a change of state or a change of phase. Melting is the name given to the change of state from a solid to a liquid.
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Changing solid water (ice) into liquid water involves a physical change known as melting. This process requires the addition of energy to break the intermolecular bonds holding the ice molecules together, allowing them to move more freely and form a liquid state.
Water changes from a solid to a liquid at 0 degrees Celsius.
The three phases of water are solid (ice), liquid, and gas (water vapor). Water changes from solid to liquid through melting, where heat is added to break the bonds between water molecules. Water changes from liquid to gas through evaporation, where heat is added to increase the kinetic energy of water molecules until they escape into the air.
The density of water decreases as it freezes and transitions from liquid to solid. This is because the molecules arrange themselves in a more spread-out, less dense pattern as ice compared to when they are in liquid form.
The phase change where the most energy is released into the environment is during the transition from water vapor (gas) to liquid water (condensation). This process releases a significant amount of latent heat, which is why condensation is often seen as a warming process in the environment.
One way to change water from a liquid to a solid is by lowering its temperature below 0 degrees Celsius. This process is known as freezing, where water molecules slow down and come closer together to form a solid structure, ice.