terminal velocity ... greater speed ... acc is 10m/s/s
The unknown liquid has low H+ concentrations and high OH- concentrations.
Plug given values in SI units to get electric field.
We have to wonder what substance you're working with. Under normal, human environmental conditions, there are almost no substances that freeze and boil at the same temperature.
However, EVERY substance has SOME temperature, at some pressure, at which it "sublimes" ... passing directly from solid to gas, or from gas to solid, without existing in liquid form in between. Even water does that, if the conditions are right.