Why do liquids have a vapor pressure?Do all liquids have vapor pressures? Do solids exhibit vapor pressure? How does vapor pressure change with changing temperature?
1 Answer
Mar 31, 2018
see below
Explanation:
not all the molecules at the liquid (and even at solid) state have the same energy, but some of them have a smaller energy and some of them have a higther energy according with the gaussian statistical distribution. Some of the molecules can have a kinetic energy highter of the energy of coesion and so can vaporize. This amount of energetic molecules rise with the themperature. This molecules forms a vapour layer upon the condensed state that is called vapour pressure. When the vapour pressure overcome the atmosferic pressure, the substance boils
