- #1

Pedro Lemos

- 1

- 0

Well, I'm trying to grasp the concepts behind the following problem :

"A guy puts some air in a vassel, the air's temperature was t0 the vessel's basis area is 50 cm³ and the height is 20. Afterwards the vassel was set onto a container full of water at 300k (Similar to Torricelli experiment), part of the water entered the tube reaching 4 cm of height and then the system acquires equilibrium. The Change in pressure is asked"

The awser is : ΔP = μ(water).g.h ->I don`t understand what formula is that nor that creepy μ.

=-1.10³.10.4.10^-2

=-4,0.10² N/m²

There is a change in temperature as well, so shouldn't this change to be considered as a factor of pressure through Clapayron's Equation p.v=R.n.T?

"A guy puts some air in a vassel, the air's temperature was t0 the vessel's basis area is 50 cm³ and the height is 20. Afterwards the vassel was set onto a container full of water at 300k (Similar to Torricelli experiment), part of the water entered the tube reaching 4 cm of height and then the system acquires equilibrium. The Change in pressure is asked"

The awser is : ΔP = μ(water).g.h ->I don`t understand what formula is that nor that creepy μ.

=-1.10³.10.4.10^-2

=-4,0.10² N/m²

There is a change in temperature as well, so shouldn't this change to be considered as a factor of pressure through Clapayron's Equation p.v=R.n.T?