- #1
raam86
- 43
- 0
Why do air "rush" into vacuum
I was reading the quite enjoyable "Physics for Superheroes" By J. Kakalios. At some point he explains what is entropy and give an example of air molecules rushing into a previously sealed and empty room (no air either) It was explained how the molecules would get there and why bit I couldn't understand what's the rush?
You encounter it in every day life, even if the air seems still when you open a window or open a door there is "wind" why is air coming into the room so fast and not seeping through the cracks? It also seems that the smaller the crack the faster the air will go to the previously less pressurized area, Why is that?
tl;tr - Why is air rushing through cracks instead of gently seeping inside.
I was reading the quite enjoyable "Physics for Superheroes" By J. Kakalios. At some point he explains what is entropy and give an example of air molecules rushing into a previously sealed and empty room (no air either) It was explained how the molecules would get there and why bit I couldn't understand what's the rush?
You encounter it in every day life, even if the air seems still when you open a window or open a door there is "wind" why is air coming into the room so fast and not seeping through the cracks? It also seems that the smaller the crack the faster the air will go to the previously less pressurized area, Why is that?
tl;tr - Why is air rushing through cracks instead of gently seeping inside.