latent heat of vaporization - amount of thermal energy needed to change from water to gas - for water this is 540 cal/g 3.
(latent heat of vaporization - amount of thermal energy; needed; to change from water to gas) (this; is; 540 cal/g 3)
latent heat of vaporization - amount of thermal energy this
needed is
to change from water to gas
540 cal/g 3