How does it work? I do not get it my brain won’t comprehend how you can freeze something and also remove moisture without heat
In: 209
Just to supplement the top comment.
[https://en.wikipedia.org/wiki/Phase_diagram#/media/File:Phase_diagram_of_water_simplified.svg](https://en.wikipedia.org/wiki/Phase_diagram#/media/File:Phase_diagram_of_water_simplified.svg)
That is a phase diagram for water. The vertical axis is pressure, the horizontal is temperature. If you pick 100 Pa on the left and go over to say -40 C then you would see you are in the blue so water would be ice.
If you keep the temperature at -40 C and reduce the pressure then you finger would move vertically down across the black line and in to the brown area and water would be a gas, never passing through the liquid phase.
Crossing that black line from a solid to a gas is know as sublimation.
Latest Answers