The discussion revolves around the pressure in a closed tank and whether the pressures at two points within the tank can be considered equal to atmospheric pressure. The original poster questions the author's assertion that P1 and P2 equal P atm, given that the tank is closed.
The discussion is active, with participants raising questions about the assumptions made regarding the tank's sealing and the pressure conditions. Some participants suggest that the tanks are not sealed, which could affect the pressure readings.
There is an ongoing examination of the problem statement, particularly regarding the lack of mention of a seal and how this impacts the pressures at the specified points. Participants are considering real-life scenarios that might influence the theoretical assumptions.
i don't think P1 and P2 = P atm ...gneill said:
I understand that. But can you think of any way that they could?foo9008 said:
for P1 = P2 = P atm , the tank is not closed?gneill said:
Correct. How does the hose enter each tank?foo9008 said:
at point 1 , it is immersed in the gas tank , while the point 2 is at the hole only , not completely immersed . What are you trying to tell ?gneill said:
I'm pointing out that neither tank is sealed. Both are open to the atmosphere through their filling apertures. The siphon hose does not make an air-tight seal at either opening.foo9008 said:
if that is air-tight selaed , then the pressure acting would not be P atm anymore , am i right ?gneill said:
Sure. It might start out at P atm at the moment a seal was made though.foo9008 said:
