system
Given the following post, respond as if you're commenting on Reddit:
human
existence of a triple point?

given that water needs to boil to vapourise and needs to freeze to solidify, how is there a certain set of Pressure and Absolute Temperature at which water (or any other substance) exist as solid, liquid and gas?
gpt
So there is a misconception in your detailed question. Water does not need to boil to vaporize. Non-boiling water vaporizes quite easily. You can demonstrate this by spilling a small quantity of water on your kitchen counter and leaving it there. It will disappear, or "evaporate" as the liquid phase molecules escape into the air as vapor.