Understanding Pressure in Liquids

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The discussion focuses on understanding how pressure changes in liquids, particularly in relation to a small tube submerged in a larger beaker of water. It explores the relationship between air pressure in the tube and the pressure at specific marks within the liquid. The user questions whether the pressure at the yellow mark equals the air pressure in the tube and how the water rises in the tube if the beaker's water level remains constant. They propose two scenarios for calculating pressure at the pink mark, debating whether it should include the air pressure in the tube or just atmospheric pressure. The conversation highlights the complexities of pressure equilibrium in liquids and the factors influencing water movement in the tube.
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I can't seem to get a clear picture of how the pressure changes in liquids.

Here is a small self made file, made to make myself understand this topic .



Click on the attachment.

Obviously as the water rose up, air pressure in the small tube rose up. (Due to Boyle's Law)

Now let's assume (for the sake of better understanding) that i pushed the small tube half a meter inside the large beaker.

Now what is the pressure on the yellow mark ?
Is it equal to the air pressure inside the small tube, because that only makes sense. If they were not equal then there would be no Equilibrium and the water would continue to rise up/down.

And, what is the pressure at the pink mark ?
Is it :

Pressure = Desnsity x g x h + atm
= 1000*9.8*0.5 +1atm


Is the pressure on both marks the same ?
 

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Why did the water rise up the tube? I can't see a reason for that unless the tube is sealed at the top and the air in it was cooled between 1 and 2?

The only other way would be if the tube was open at the top and capillary action caused the water to rise a little way up the tube?
 
So what u are suggesting is that the water level in the beaker remains constant, thus the awter in the small tube will not rise ?

If that is the case, then the pressure at the yellow spot must be the same as the pressure of the air in the small tube, while Pressure at the pink mark will be ?

1.Air pressure in the small tube(which is higher than 1atm) plus the pressure due to liquid water
OR
2.Air pressure (1 atm) plus the pressure due to liquid water

I think it would be 1.

Am i correct ?
 
Bump

Is there no one who can help me ? :(
 
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