Boiling vs. Evaporation: Know the Difference
By Shumaila Saeed || Published on January 27, 2024
Boiling is a rapid phase change of liquid to gas at a specific temperature under pressure. Evaporation is a gradual surface process where liquid slowly turns into gas at any temperature.
Key Differences
Boiling occurs at a specific temperature known as the boiling point, which depends on the pressure. Evaporation, on the other hand, can occur at any temperature, typically happening at the surface of a liquid.
Shumaila Saeed
Jan 27, 2024
Boiling is a rapid process where a liquid quickly changes to gas, forming bubbles. Evaporation is a slower process, involving the gradual escape of molecules from the liquid’s surface.
Shumaila Saeed
Jan 27, 2024
Boiling requires a specific amount of heat energy to reach the boiling point. In contrast, evaporation can happen naturally, often requiring less energy and occurring over a wider range of conditions.
Shumaila Saeed
Jan 27, 2024
Boiling typically requires an external heat source and happens throughout the entire liquid. Evaporation naturally occurs at the surface of a liquid, often influenced by surrounding environmental conditions.
Shumaila Saeed
Jan 27, 2024
In boiling, the liquid changes to gas uniformly from the entire mass of the liquid. Evaporation is a surface phenomenon, with only the molecules at the surface converting to gas.
Shumaila Saeed
Jan 27, 2024
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Comparison Chart
Energy Requirement
Requires heat to reach boiling point
Occurs with less energy, naturally
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Jan 27, 2024
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Boiling and Evaporation Definitions
Boiling
A phase transition from liquid to gas at a specific temperature and pressure.
Boiling of liquid nitrogen occurs at -196°C, showcasing its low boiling point.
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Jan 05, 2024
Evaporation
A gradual surface phenomenon where a liquid slowly becomes a gas.
The evaporation of the puddle was accelerated by the hot weather.
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Jan 05, 2024
Boiling
The act of liquid changing to vapor at a certain temperature and pressure.
Boiling of the saline solution was part of the purification process.
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Jan 05, 2024
Evaporation
The conversion of liquid to vapor at any temperature from the surface.
Evaporation of sweat helps in cooling the body during exercise.
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Jan 05, 2024
Boiling
The process where a liquid turns to vapor upon reaching its boiling point.
The soup was boiling rapidly, indicating it was ready to be served.
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Jan 05, 2024
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Boiling
A heating process where liquid becomes gas, creating bubbles.
The boiling water in the pot was producing steam for cooking.
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Evaporation
To draw moisture from, as by heating, leaving only the dry solid portion.
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Jan 05, 2024
Boiling
Used as an intensive
Fainted because it was boiling hot.
Boiling mad over the mistake.
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Jan 05, 2024
Boiling
The process of changing the state of a substance from liquid to gas by heating it to its boiling point.
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Boiling
(uncountable) An animation style with constantly changing wavy outlines, giving a shimmering or wobbling appearance.
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Boiling
Of a thing: extremely hot or active.
The radiator is boiling – I’m going to turn it down a bit.
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Jan 05, 2024
Evaporation
The process in which all or a portion of liquid (in a container) is turned into vapour, in order to increase the concentration of solid matter in the mixture.
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Boiling
Of a person: feeling uncomfortably hot.
I’m boiling – can’t we open a window?
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Jan 05, 2024
Evaporation
The process by which any substance is converted from a liquid state into, and carried off in, vapor; as, the evaporation of water, of ether, of camphor.
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Jan 05, 2024
Evaporation
The transformation of a portion of a fluid into vapor, in order to obtain the fixed matter contained in it in a state of greater consistence.
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Jan 05, 2024
Boiling
Heated to the point of bubbling; heaving with bubbles; in tumultuous agitation, as boiling liquid; surging; seething; swelling with heat, ardor, or passion.
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Evaporation
The process of turning liquid into vapor at temperatures below the boiling point.
Evaporation of water occurs naturally on a sunny day.
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Jan 05, 2024
Evaporation
The slow vaporization of a liquid at temperatures below its boiling point.
The drying of wet clothes is due to the evaporation of water.
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Jan 05, 2024
Boiling
The rapid vaporization of a liquid when it is heated to its boiling point.
Water starts boiling at 100°C under standard atmospheric pressure.
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Jan 05, 2024
Evaporation
The physical process where liquid molecules escape as gas from the surface.
The evaporation of perfume leads to the spread of its fragrance.
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Jan 05, 2024
Repeatedly Asked Queries
Are bubbles formed during Evaporation?
No, evaporation occurs without visible bubbles.
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Jan 27, 2024
Can Evaporation occur at room temperature?
Yes, evaporation can happen at any temperature.
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Jan 27, 2024
Is external heat always required for Boiling?
Yes, boiling typically requires an external heat source.
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Jan 27, 2024
At what temperature does Boiling occur?
At the specific boiling point of the liquid.
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Jan 27, 2024
What is Evaporation?
Slow conversion of liquid to gas at temperatures below the boiling point.
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Jan 27, 2024
Does Evaporation need an external heat source?
No, it can occur naturally without added heat.
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Jan 27, 2024
Is Boiling or Evaporation faster for liquid removal?
Boiling is generally faster for removing liquid.
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Jan 27, 2024
Where does Boiling occur in a liquid?
Throughout the entire mass of the liquid.
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Jan 27, 2024
Where does Evaporation take place in a liquid?
At the surface of the liquid.
Shumaila Saeed
Jan 27, 2024
Do bubbles indicate Boiling?
Yes, boiling is marked by the formation of bubbles.
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Jan 27, 2024
Does Evaporation require specific pressure conditions?
No, it can happen under various pressure conditions.
Shumaila Saeed
Jan 27, 2024
Can Boiling be used for purification?
Yes, boiling can purify liquids by killing germs.
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Jan 27, 2024
Can Boiling occur at any temperature?
No, it occurs only at the boiling point of the liquid.
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Jan 27, 2024
What influences the rate of Evaporation?
Temperature, surface area, and air movement.
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Jan 27, 2024
Does Evaporation leave behind impurities?
Yes, impurities are often left behind after evaporation.
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Jan 27, 2024
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
Hifza Nasir
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