Final answer:
Evaporation is the process where liquid molecules turn into gas due to sufficient energy. Liquids and gases share molecular motion but differ in intermolecular forces. Boiling occurs when all liquid particles gain enough energy to vaporize.
Explanation:
Evaporation is the process where molecules in a liquid gain enough energy to enter a gaseous state above the liquid's surface, creating a vapor pressure. This occurs when molecules with kinetic energy higher than a minimum amount overcome intermolecular forces, usually at the liquid's surface.
Liquids and gases are both composed of particles in constant motion according to the kinetic molecular theory. However, liquids have stronger intermolecular forces compared to gases, requiring more energy for particles to transition into the gas phase.
Boiling happens when the molecules in a liquid obtain enough kinetic energy throughout the liquid to vaporize. The boiling point is reached when the liquid's vapor pressure matches the external pressure.
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