system
Given the following post, respond as if you're commenting on Reddit:
human
Does changing temperature have "inertia?"

When anything with mass, let's say a liter of water, changes temperature, can that change in temperature have any sort of "inertia?" For example, if I boil a liter of water, and then put it in a freezer that is exactly 0°C; does the temperature simply fall to zero, or can it build "inertia," that would cause the water's temperature to dip below zero, and then effectively "rebound" and settle at 0°C?
gpt
No, for the reason that changes in temperature require a sink to 'move heat' (**this is not a rigorous way of talking about it**) in or out of. If the water is getting colder, it has to be making something else hotter by giving energy to it. By the laws of thermodynamics it can't be making anything already hotter than it is even hotter as this would result in a decrease in entropy and that's against well established empirical fact. Hence no 'inertia': changes in temperature always have an external body driving them, whilst in any given reference frame an object's momentum is constant.