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Boiling: Boiling is the process through which a liquid turns into a gas or vapor when it reaches its boiling point, which is the temperature at which the vapor pressure of the liquid becomes equal to the pressure exerted on it by the surrounding environment. Evaporation: Evaporation is the gradual process where a liquid turns into a gas or vapor, taking place at the surface of the liquid. This process can occur at any temperature and does not require the liquid to reach its boiling point.

Boiling: Boiling occurs throughout the entire volume of a liquid when it reaches its boiling point. At this point, bubbles of vapor form within the liquid, rise to the surface, and release the vapor into the air. Evaporation: Evaporation happens only at the surface of a liquid and can occur at any temperature. As particles on the surface of the liquid gain enough energy, they escape and become gaseous molecules.

Boiling: The boiling point of a substance depends on its specific properties and the surrounding pressure. As the temperature increases, the substance reaches its boiling point and begins to boil actively, and the rate of vaporization increases. Evaporation: The rate of evaporation depends on the temperature as well. As the temperature increases, the particles of the liquid gain more energy, and the rate of evaporation also increases. However, evaporation can occur even at low temperatures, albeit at a slower rate.

Boiling: The boiling point of a substance is affected by the pressure exerted on it. If the pressure is reduced, the boiling point of the substance decreases, and the liquid can boil at a lower temperature. Conversely, if the pressure is increased, the boiling point increases, and the liquid needs to be heated more to reach its boiling point. Evaporation: Pressure does not have a direct effect on evaporation, as evaporation occurs at the surface of the liquid. However, the rate of evaporation can be indirectly affected by pressure since it affects the boiling point of the liquid. Lower pressure results in a lower boiling point, which could result in a higher rate of evaporation due to the higher vapor pressure at the surface of the liquid. Conversely, a higher pressure could result in a slower rate of evaporation due to the lower vapor pressure at the surface of the liquid. In conclusion, boiling and evaporation both involve the transition of a substance from its liquid phase to its gaseous phase. However, they differ in the conditions under which they occur, the effect of temperature and pressure on the process, and the location within the liquid where the transformation occurs.