Difference between boiling and evaporation, along with related photos:
Boiling
Definition: Boiling is a rapid process where a liquid changes into a vapor at a specific temperature called its boiling point.
Location: It occurs throughout the entire mass of the liquid, with bubbles of vapor forming within the liquid and rising to the surface.
Temperature Dependence: Boiling occurs only at the boiling temperature(B.P) of the liquid.
Energy Requirement: It requires a significant amount of energy to reach the boiling point and maintain the process.
Bubbles: Bubbles are visibly formed during boiling.
Speed: It is a rapid and often vigorous process.
Evaporation
Definition: Evaporation is a slower process where a liquid changes into a vapor at any temperature below its boiling point.
Location: It occurs only at the surface of the liquid. Molecules at the surface gain enough energy to escape into the gas phase.
Temperature Dependence: Evaporation can occur at all temperatures, even at low temperatures.
Energy Requirement: It requires less energy compared to boiling since it occurs at lower temperatures.
Bubbles: No bubbles are formed during evaporation.
Speed: It is a slow and gradual process.
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