Pressure in Liquid: Question on Height Dependency

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In summary, if you seal yourself up in a container of liquid and add a straw to a hole in the top, you would feel the pressure of the liquid even if you are on the other side of the container.
  • #1
csnsc14320
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This is just a question I have been wondering about.

From what I understand, the pressure of a liquid, no matter the shape of the container, is dependent only on height.

So, the scenario I am wondering, is:

Say I can breath underwater, and I seal myself up into a tank of ~100 gallons, so that I can fit into it (keep in mind, completely sealed, no air gaps). Now, someone cuts a tiny hole on top, say the size of a straw, and attaches a 30 foot tall straw that won't break to the hole. If they now fill that straw up all the way, will I feel like I am under 30 additional feet of water?

And, if so, would the same scenario hold similar results?

I seal myself up into an Olympic sized swimming pool. I float on the far right ride, but someone cuts a hole and adds a 100 foot straw to the left side and fills it. Do I really feel an additional 100 feet of pressure on the other side of the pool again?

Thanks
 
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  • #2
it is aptly correct that if proper vacuum is obtained and a straw of large length is filled with water then you would feel immense pressure just because of the height of the water column and the atmospheric pressure above it.it sounds a bit weird to the new learners but few experiments on variation of pressure of liquid with height confirm it.if you request further i would be able to give u list of some experiments and procedures of carrying out them in your home.
 
  • #3
spiffing_abhijit said:
it is aptly correct that if proper vacuum is obtained and a straw of large length is filled with water then you would feel immense pressure just because of the height of the water column and the atmospheric pressure above it.it sounds a bit weird to the new learners but few experiments on variation of pressure of liquid with height confirm it.if you request further i would be able to give u list of some experiments and procedures of carrying out them in your home.

yeah, if you could, i think some of those experiments would be nice/fun :)

thanks for the answer and the verification
 

1. What is the relationship between pressure and height in a liquid?

The pressure in a liquid is directly proportional to its height. This means that as the height of a liquid increases, so does its pressure.

2. Why does pressure increase with depth in a liquid?

As the depth of a liquid increases, the weight of the liquid above also increases. This increased weight exerts a greater force on the liquid below, resulting in an increase in pressure.

3. How is the pressure at the bottom of a liquid column affected by the density of the liquid?

The pressure at the bottom of a liquid column is directly proportional to the density of the liquid. This means that a liquid with a higher density will have a greater pressure at its bottom compared to a liquid with a lower density.

4. Does the shape of a container affect the pressure at the bottom of a liquid column?

Yes, the shape of a container does affect the pressure at the bottom of a liquid column. The pressure at the bottom is determined by the weight of the liquid above, so a wider or taller container will have a greater pressure at the bottom compared to a smaller or shorter container.

5. How does the pressure in a liquid change when the liquid is heated or cooled?

The pressure in a liquid is affected by changes in temperature. When a liquid is heated, its particles move faster and take up more space, causing an increase in pressure. On the other hand, when a liquid is cooled, its particles move slower and take up less space, resulting in a decrease in pressure.

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