water changes state Flashcards
1
Q
what is so cool about water?
A
water is the only substance that naturally exists on earth as a solid (ice), liquid and gas (water vapor)
2
Q
what is happening in the liquid state of water?
A
molecules are still tightly packed but are moving fast enough that they slide past one another
3
Q
what is happening with water vapour?
A
molecules acquire enough energy to break the remaining molecular attractions - molecules are widely spaced and exhibit very energetic random motion
4
Q
what is condestion?
A
gas to liquid
5
Q
what is evaporation?
A
liquid to gas
6
Q
what is deopostion?
A
gas to solid
7
Q
what is sublimation?
A
solid to gas
