- Melting: Solid to liquid.
- Sublimation: Solid to gas.
- Vaporization: Liquid to gas.
- Freezing: Liquid to solid.
- Deposition: Gas to solid.
- Condensation: Gas to liquid.
Evaporation and Boiling
Evaporation is the escape of liquid molecules into the gaseous state at a temperature other than boiling.
Differences between Evaporation and Boiling.
|
Number
|
Evaporation
|
Boiling
|
|
1
|
Takes place at all temperature
|
Occurs at 100°C
|
|
2
|
Takes place at the surface
|
Occurs in the entire liquid
|
|
3
|
Influenced by some factors
|
Influenced by pressure and impurities
|
|
4
|
Reduces the temperature
|
No temperature change
|
|
5
|
No bubbles are produced
|
Bubbles are produced
|
Factors Affecting Evaporation
- Temperature
The higher the temperature, the faster the rate of evaporation and vice versa.
- Wind
The rate of evaporation is faster when wind is blowing and is slower when the air still and vice-versa.
- Relative Humidity
The higher the relative humidity, the slower the rate of evaporation and vice-versa.
- Exposed Surface Area
The higher the exposed surface area, the higher the rate of evaporation and vice-versa.
