Difference Between in Chemistry

Difference between Vaporization and Evaporation

Evaporation and Vaporization are the two commonly happening processes in our nature. These two processes are the true reasons why we need to water our garden in the summer season and also why the milk boils in the pot on the stove. Actually evaporation is a type of vaporization which takes place in our surroundings.  So, evaporation is more common in comparison to other types of vaporization like boiling. Here we will discuss and explain the difference between vaporization and evaporation processes. Also, we make it clear that these two processes are not exactly the same, as many people tend to be confused considering both as same process. While these two appear to be words with similar meanings, but still there are many differences that exist. Actually, on a molecular level, both these processes differ from each other minutely. Both are occurring at different surfaces and temperatures.

What is the Vaporization process?

This is a transitional phase of an element or compound from its solid phase or liquid phase to the corresponding gas phase. It also refers to the physical destruction of a substance with the effect of intense heat. Vaporization is the process of applying heat for the transition of some substance from a solid or liquid state to a gas state. It is must be noted that these changes in the state of matter from one to another are happening without a change in the chemical composition.

What is the Evaporation process?

The evaporation process is the transition from the liquid phase to the gas phase taking place below the boiling temperature at the given pressure. Also, and it happens on the surface and not bellow as in the vaporization process. Thus evaporation is a type of vaporization process of liquid into the gas state on its surface.

Difference between Vaporization and Evaporation

difference between vaporization and evaporation

                                                                            difference between vaporization and evaporation

The important difference between vaporization and evaporation

Sr No. Parameter Vaporization Evaporation
1.  Definition It is defined as the transitional phase of a compound or an element at the boiling temperature. It is nothing but a special kind of vaporization and mostly occurring at the temperature below the boiling point.
2.  Transition of state It changes the state of matter from a solid or liquid to a gas. It changes the liquid state of the matter directly into a gas.
3.  Speed of process It is generally happening at a fast pace and also it needs less amount of energy. It is generally a slower process that needs more energy.
4. Effect area During the vaporization process, all of the water turns into a gas. During the evaporation process, only the top level of water turn into gas.
5.  Movement of molecule During vaporization, molecules may come from below the surface of liquid also. During evaporation, molecules vaporize from the surface of liquid only.

Vaporization and Evaporation both are nothing but a transition of the phase of a substance from a solid or liquid state to the gas state.  After studying the difference between Vaporization and Evaporation, let us understand some more details.


The vaporization process may be Boiling or Sublimation. In the boiling process, the transition is happening from the liquid phase to the gas phase at or above the boiling temperature. Also, it occurs below the surface. Whereas the sublimation process is the transition from the solid phase to the gas phase directly without passing through the liquid phase. Also, it occurs at the temperatures and pressures below the triple point of a substance.


In our nature, the evaporation process is an important part of the water cycle. It is possible due to solar energy. This energy causes the evaporation of water from various sources of water such as oceans, seas, rivers, etc. Not only this but evaporation also possible of water existing as the moisture in the soil and other bodies. During exposure of water to air, liquid molecules turn into vapor and rise up for making clouds. This cloud further releases the water back to earth as rain.

FAQs about Vaporization and Evaporation

Q.1: Is the vaporization process is same as the evaporation process?

Solution: Vaporization of an element or the compound is the transition of phase from the liquid to vapor. It is having two forms- one is evaporation and the other is boiling. Evaporation is considered a surface phenomenon, on the other hand, boiling is a bulk phenomenon. Therefore the vaporization process is different from the evaporation process on certain factors.

Q.2: Explain about the happenings with the particles before, during, and after the vaporization process.

Solution: The most energetic particles of the liquid at the surface escape as vapor with an increase in temperature. The liquid then evaporates faster with more heat as more particles have enough energy to break away. Obviously the particle needs the energy to overcome their inter-molecular attraction.

Q.3: What things are happening during evaporation?

Solution: Evaporation process happens while a liquid substance becomes a gas. With the heated water evaporates. Subsequently, molecules start moving and vibrating quickly and hence they escape into the atmosphere as vapor.




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