What I will see is a line of molecules connected together by intermolecular bonds or non covalent bonds. Now, if I somehow increase the kinetic energy of these molecules, what will happen? Well, if one of these molecules gained enough kinetic energy, that energy will be able to overcome the energy due to the bonding. And this will allow the molecule to escape into the space above. So that means if I somehow increase the kinetic energy of this system, evaporation will occur. And if I let them evaporate and then I open, I should hear a hissing sound.