In both examples, water undergoes evaporation, where molecules at the surface gain enough kinetic energy to escape into the air as vapor.
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Boiling is described as a bulk phenomenon, where particles from the bulk of the liquid gain enough energy to change into the vapor state.
The temperature at which a liquid begins to boil at atmospheric pressure is called its boiling point.
At a certain temperature, particles have enough energy to break free from the forces of attraction, causing the liquid to change into a gas.
When heat energy is supplied to water, particles begin to move faster.