how does water change state?
i believe it's changes in temperature. you can heat it to turn it into a gas, freeze it to turn it into a solid and heat the solid to turn it into a liquid.
Thank u Ana:-)
Water can change state from a solid (ice) to a liquid (water) to a gas (water vapor) through a process called phase change or switching between different physical states. The phase change of water is influenced by temperature and pressure.
To understand how water changes state, we need to know a few basic concepts:
1. Heat energy: Water gains or loses heat energy during state changes. When heat energy is added to a substance, its temperature increases, and when heat energy is removed, the temperature decreases.
2. Melting: The process of water changing from a solid (ice) to a liquid (water) is called melting. It occurs when heat energy is added to ice, increasing its temperature above 0 degrees Celsius (32 degrees Fahrenheit). At this point, the ice absorbs the heat energy, and the bonds holding the water molecules together start to break, turning it into liquid water.
3. Boiling: The process of water changing from a liquid to a gas is called boiling. It occurs when heat energy is continuously added to water, causing its temperature to reach 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure. At this point, the water molecules gain enough energy to break free from their liquid state and become water vapor.
4. Condensation: The process of water vapor changing back into liquid water is called condensation. This occurs when heat energy is removed from water vapor, causing its temperature to decrease. As the temperature drops, the water vapor loses energy, and the water molecules come together, forming tiny water droplets.
5. Freezing: The process of water changing from a liquid to a solid is called freezing. It occurs when heat energy is removed from liquid water, decreasing its temperature below 0 degrees Celsius (32 degrees Fahrenheit). As the temperature drops, the water molecules lose energy, and the forces between them become stronger, forming a crystalline structure which results in ice.
In summary, water changes state from solid to liquid (melting) as heat energy is added, and from a liquid to gas (boiling) as heat energy is continuously added. Conversely, it changes from a gas to liquid (condensation) as heat energy is removed, and from a liquid to a solid (freezing) as heat energy is continuously removed.