Lets say I've got a container full of a liquid. The liquid has a chemical in it which is concentrated at lets say, 1ml per L. Now I puncture the container, so the pressure is obviously making all of the liquid in the container flow toward and out of that puncture point. Does that mean that the concentration of the chemical in the liquid is higher as it flows out of the puncture point? So like if I collected 1 liter as it flows out, that liter would have a greater concentration then 1mg / L?