What would happen when the water is cooked?

When water is heated to a temperature above its boiling point, it undergoes several physical and chemical changes, resulting in the transformation from liquid to a gaseous state. This process is called boiling. Here are some of the key changes that occur when water is cooked:

1. Phase transition: The most prominent change is the phase transition from liquid to gas. The liquid water molecules gain enough energy to overcome their intermolecular forces and escape into the surrounding atmosphere as water vapor. This process is driven by the addition of heat energy.

2. Bubbles: During heating, tiny air bubbles present in the water expand. These bubbles act as nucleation sites for vapor formation. As the water temperature increases, the bubbles rise to the surface and burst, releasing water vapor into the air.

3. Evaporation: The surface of the water directly in contact with the heat source also undergoes evaporation. The water molecules at the surface absorb heat and escape as vapor, contributing to the overall water loss.

4. Vapor Pressure: As water is heated, the kinetic energy of water molecules increases, resulting in a higher vapor pressure. The vapor pressure of water rises as the temperature increases, eventually reaching the atmospheric pressure at the boiling point.

5. Heat Absorption: Boiling water absorbs a large amount of heat without undergoing any significant change in temperature. This heat is required to overcome the intermolecular forces and convert liquid water into vapor.

6. Impurities and Minerals: Depending on the quality and source of water, impurities and minerals may be present. During boiling, some impurities can be released as gases or become more concentrated in the remaining water.

7. Oxygen Reduction: Boiling water reduces the dissolved oxygen content. This can impact the taste and biological properties of the water.

It is worth noting that while boiling makes water safe for consumption by killing pathogenic microorganisms, it may not remove or alter all water contaminants or dissolved substances.