Here's a breakdown:
* Boiling is a phase change where a liquid turns into a gas. This occurs when the vapor pressure of the liquid equals the surrounding atmospheric pressure.
* Vapor pressure is the pressure exerted by the vapor of a liquid in a closed system at equilibrium.
* Atmospheric pressure is the pressure exerted by the weight of the air in the atmosphere.
In simpler terms: When the pressure of the liquid's vapor becomes high enough to overcome the pressure of the air around it, the liquid boils and turns into a gas.
