How Does Water Volume Affect Pressure in a Closed Container?

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Homework Help Overview

The discussion revolves around the relationship between water volume and pressure in a closed container, particularly focusing on how the amount of water affects pressure when introduced through a tube. Participants explore whether this scenario is analogous to changing the container's volume and how a smaller container might influence pressure changes.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants question how the volume of water in the container impacts pressure and whether this is similar to altering the container's volume. There are inquiries about the effects of a smaller container on pressure changes when water is added.

Discussion Status

Some participants have provided insights into the relationship between air and water in a sealed container, suggesting that adding water increases pressure due to limited space. There is an ongoing exploration of these concepts, with no explicit consensus reached.

Contextual Notes

There is a noted lack of supporting equations or detailed attempts at solutions, which may affect the depth of the discussion. Participants are encouraged to provide more information and clarify their understanding of the problem.

Physicist1011
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Homework Statement


A closed container is connected with a tube, water will enter the container via this tube. How would the amount of water in the container affect the pressure in it when water enters the container via the tube?
Is this the same as changing the volume of the container (which water is being poured into (by a tube). If so how does a smaller container volume affect the change in pressure when water enters the container via tube?

Homework Equations



The Attempt at a Solution

 
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You seem to only have given the question without any supporting equations we would need to know or an attempt at the solution.

Could you please give some more information and follow the homework question format?
 
No equations involved. I don't understand how changing the volume of water in the container (to start with there will be a volume of water in the container) will affect the pressure increase in the container when water enters it via a tube. And also if this is the same as using a smaller container, how will this effect the pressure increase in the container if a smaller container is used?
 
I think I understand what you're saying. If you have a sealed box, with air in it. The amount of air is constant and has a constant density and fills up the box. You then proceed to add water to the box through a tube which I'm assuming acts like a valve and only let's in water but does not let out air.

Now, think about this. There was a fixed amount of air taking up the entire box and you just added some water. Where is the place for the water? Only option is for the pressure and subsequently the density of the air or water to increase so there is more place.

Smaller the container, less place, so more pressure.

Is this what you wanted?
 
lekh2003 said:
I think I understand what you're saying. If you have a sealed box, with air in it. The amount of air is constant and has a constant density and fills up the box. You then proceed to add water to the box through a tube which I'm assuming acts like a valve and only let's in water but does not let out air.

Now, think about this. There was a fixed amount of air taking up the entire box and you just added some water. Where is the place for the water? Only option is for the pressure and subsequently the density of the air or water to increase so there is more place.

Smaller the container, less place, so more pressure.

Is this what you wanted?
Yes, thank you.
 

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