I see. I was taught that an entire volume must be undergo the change to a super-critical state in order for the super-critical fluid to be relaxed. For that reason, I drew a parallel to super fluids. I was with the impression that matter undergoing the change to a super-critical state would...
My understanding was that matter in the containment will reach greater velocities than it normally would, if the rest of the volume is near to reaching a supercritical state.
Judging by the simplicity of your answer, am I to assume that I'm completely wrong?
Technically, this isn't a question concerning supercritical fluids. It's more about converting thermal energy into velocity by playing "keep-away" with molecules that want to go supercritical.
The idea is simple. In an fully contained system, we can more or less say volume is static...