Final answer:
The boiling point is the temperature at which a substance changes from a liquid to a gas through vaporization.
Explanation:
Boiling point is the temperature at which a substance transitions from a liquid to a gas.
It represents the point at which the liquid's vapor pressure equals the pressure exerted on it, leading to the phase change.
Water, for instance, boils at 100°C at normal atmospheric pressure (1 atm).
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