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9. Give two points of difference between
evaporation and boiling
Answers
Answer:
So the difference is: 1, boiling can occurs everywhere, depending on the heat source. Whereas evaporation only takes place at surface of the liquid. 2, boiling requires certain temperature at certain pressure, and continuous heating source, while evaporation works at any temperature and pressure
Explanation:
evaporation:Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other.
boiling:Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
difference
1)boiling occurs at particular temp. evaporation can occur at any temp
2) boiling is a bulk phenomenon, evaporation is a surface phenomenon
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