Explain the following: ¡) gases exert pressure on the walls of the container ¡¡) water is liquid at room temperture ¡¡¡) evaporation causes cooling
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in gases molecules are present very far.
at room temp. water is liquid bcoz it is its state there.
on evapouration water vapours get mixed in air and get cooled.
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Answer:
Explanation:
a) The gas exerts pressure. we can notice this ins ind the container containing gas...
all the molecules of gas starts to hit the surface of container, this exerts pressure.
b) Water in room temperature.
all the water............ (no idea)
c) evaporation cause coolness.
this can be experienced mostly during summer time when we perspire more and more.
The sweat that gets evaporated absorbs the hotness in our body to evaporate and leaves coolness in our body......
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