system
Given the following post, respond as if you're commenting on Reddit:
human
I've read that the reason water evaporates at room temperature, is because some molecules have enough energy to break free. Even ice evaporates. But then why doesn't every substance evaporate? Like metal or glass or rock.
gpt
Every substance does evaporate ... eventually.  But for most solids, the evaporation rate is many billions of times slower than liquid water or ice. The atoms are just held to the bulk material that much tighter.