Factors Affecting Evaporation
There are several volatile substances , among others : spirits , gasoline , alcohol , etc. . Have you seen why a hot beverage is poured in the cup ? Have you fed your sister hot food , why should blow first? Why should wash wet clothes dried in the sun ? Now follow the following explanation ! .
Understanding Evaporation is a moving event release molecules from the surface of the liquid . Some way speed up evaporation , namely :
a. heat
When finished washing some clothes , try jemurlah one in the shade and some in the hot sun . Which dry faster ? In drying you do , the clothes in the sun to dry. This suggests that the water contained in the clothes evaporates faster .
b . Expanding the liquid surface
Pour hot coffee portion you made on plates . Wait a minute , then drink . Just compare , which one is faster cold water or a cup of coffee in the cup ? You will get the coffee in the cup of water faster than cold water in a cup of coffee . This shows that the evaporation of water in the cup of coffee that has
a wider surface will be faster than evaporation in the glass .
c . Blowing air over the surface of a liquid
When you feed your sister with hot food , why should blow first? Hot foods whose surface is blown cold rather fast . This is because the food is blown faster evaporation so cool .
d . reduce pressure
By reducing the air pressure on the surface of a substance , resulting in the distance between air molecules becomes large . This results in the molecules on the surface of the liquid will move on to the air in it so speed up the evaporation process .
Some events evaporation , among others :
1 ) Boil water 100 0C .
2 ) Drying wet clothes to be dried .
3 ) Evaporation freon gas in the refrigerator .
4 ) Alcohol or rubbing alcohol hand dripped on the skin can evaporate .
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