Edit for follow up question: if a freezer is sealed (or a fridge, or any other container sublimination or even evaporation takes place), how does this gas not build up and cause expanding or even a more violent reaction of said container? Where does it go?
In: 1
For OP’s edit/follow-up: sublimation of ice in a freezer is *slow*. The sublimated water will just be water vapour in the air of the freezer. If you manage to get up to 100% humidity in the freezer air and freezer is truly sealed, the sublimation will stop (technically, the rate of ice-to-gas and gas-to-ice will equalize). The amount of water to hit 100% humidity in a really cold environment like a freezer is very small so you’re not talking about massive amounts of water vapour.
In practice, freezers aren’t truly airtight and you open them periodically, which lets out some of the vapour and then sublimation can resume.
If you deal with materials the sublimate fast, like carbon dioxide, they *do* build up and blow up the container. That’s the whole principle behind dry-ice bombs.
Latest Answers