Is the water pressure equal in a sealed column at the top and bottom?

In summary: No, there is not a specific calculation for this scenario. It depends on the height and density of the fluid in the column. However, you can use the hydrostatic equation to calculate the pressure at different points in the column. This is often covered in hydrostatics courses.
  • #1
karalius
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0
Is the water pressure equal in a sealed column at the top and bottom?

If I created 1 bar of pressure would this also be equal at the top and bottom?
 
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  • #3
karalius said:
Is the water pressure equal in a sealed column at the top and bottom?

If I created 1 bar of pressure would this also be equal at the top and bottom?
No. The pressure on the top would be lower than the pressure on the bottom. So the pressure is not 1 bar throughout the column. If the pressure at the center of the column is 1 bar, then the pressure at the top is less than 1 bar, and the pressure at the bottom is greater than 1 bar.

Chet
 
  • #4
Chestermiller said:
No. The pressure on the top would be lower than the pressure on the bottom. So the pressure is not 1 bar throughout the column. If the pressure at the center of the column is 1 bar, then the pressure at the top is less than 1 bar, and the pressure at the bottom is greater than 1 bar.

Chet
Thank you, is there a calculation I can use to work out the difference?
 
  • #5
karalius said:
Thank you, is there a calculation I can use to work out the difference?
Have you learned about hydrostatics in your course yet?

Chet
 

Related to Is the water pressure equal in a sealed column at the top and bottom?

1. Is the water pressure the same at the top and bottom of a sealed column?

Yes, the water pressure at the top and bottom of a sealed column is equal. This is because the weight of the water above exerts a force on every point in the column, causing the pressure to be the same at all points.

2. Does the height of the water column affect the pressure at the bottom?

Yes, the height of the water column does affect the pressure at the bottom. The higher the column, the greater the weight of the water above, resulting in a higher pressure at the bottom.

3. Does the diameter of the column affect the pressure at the bottom?

No, the diameter of the column does not affect the pressure at the bottom. As long as the height of the column and the density of the water remain constant, the pressure at the bottom will also remain constant.

4. Can the water pressure at the top of the column be different from the pressure at the bottom?

No, the water pressure at the top of the column cannot be different from the pressure at the bottom. This is due to the principle of hydrostatic equilibrium, which states that the pressure at any given depth in a fluid is equal in all directions.

5. How does the water pressure change if the column is not sealed?

If the column is not sealed, the water pressure will decrease as it rises due to the weight of the water above being distributed over a larger area. This is known as hydrostatic pressure and can be calculated using the equation P = ρgh, where P is pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the height of the column.

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