10th Class Physical Science - Question Bank
Your friend is asked to differentiate between evaporation and boiling. What questions could you ask to make him to know the differences between evaporation and boiling?
I would like to ask the following questions:
* Does boiling of a substance takes place
at any temperature?
* Does evaporation at any temperature or
not?
* Is evaporation a surface phenomenon or
bulk phenomenon?
* At which temperature does water boils?
* The water in wet clothes dries due to
wind. Is wind provides 100oC ?
What happens to the water when wet
clothes dry?
When wet clothes kept in open place, due
to large area exposed to air, the water
molecules absorb heat from surroundings
and change its state by leaving the
clothes dry on wind blows. This process
is evaporation.
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