heat is a form of energy, the addition or
removal of heat inform of latent heat of vaporization or fusion can change a
substance from one state /phase to another.
water can exist in three state of matter or
phases, solid as ice, liquid water and gaseous as steam.
when latent heat of fusion is added to an ice,
it turns to water at 0°c, when latent heat of vaporization is added to liquid
water it changes to steam( gaseous state) at 100°c .
But if we
remove latent heat of vaporization from a steam it turns t a liquid water at
100°c, and if we remove latent heat of fusion from liquid water it turns to ice
( solid state)
therefore the addition and removal of energy
has change the physical state of a substance.
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