All Questions
261
questions
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Pressure build inside water tank [closed]
It‘s been a few years since I had my last physics class so please be kind to me. I came here to ask you about a phenomenon I recently discovered in a design of mine.
The object in question is a stand ...
- 101
1
vote
1
answer
35
views
Can siphons improve the efficiency of hydroelectric dams?
Suppose we have built a hydroelectric dam where the water inlet is 100m above the outlet. We can now use the gravitational potential of the water to spin a turbine. However, suppose we install a ...
- 162
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1
answer
37
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Keeping sparkling water inside a bottle as aerated as it was before opening bottle
So when you open a new bottle of sparkling water (or soda) it's very fizzy and aerated. However, when it is stored for quite a bit (no matter how tightly you close the bottle cap) it loses some gases ...
- 21
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0
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24
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Does the specific heat of water vary with pressure?
I know that there is both a Cp and Cv value, but here's what I don't understand: are they independent of what the absolute pressure is? They vary with temperature, and tables can be readily found with ...
- 1
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0
answers
26
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Does air gap between enclosed chamber and manometer influence the manometer reading?
We have an enclosed chamber filled with water. From the top of the chamber there is a metallic tube connecting the chamber to a monometer. We increase the pressure of the water inside the chamber buy ...
1
vote
1
answer
67
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Water Vapour and Liquid Water Interactions
It is known that a certain number of particles in a sample of water have enough kinetic energy to ‘escape’ from their intermolecular bonds and into the gas phase. But what is stopping these water ...
- 11
1
vote
1
answer
241
views
Is water capacity of air affected by air pressure?
Air can hold water in proportion to partial pressure of water vapor. This is affected by temperature. But is the water capacity of air also affected by ambient pressure?
I did find some answers that ...
- 11
0
votes
1
answer
105
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The solubility of gases in liquids. Laws and equation [closed]
I am studying the solubility of gases in liquids (flowing then into the study of oscillations of gas bubbles out of the liquid phase).
The task at the moment is to familiarize myself with the laws of ...
- 3
1
vote
1
answer
12
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How carbon water filter can build air pressure inside (before installation)? [closed]
Today I got a new refrigerator carbon water filter. Before installing, out of curiosity, I dripped a bit water into the filter’s outlet to see if water could flow in and out. Obviously it did… Then, ...
- 11
1
vote
0
answers
98
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How much $\rm CO_2$ can you save by overfilling a SodaStream bottle? [closed]
For people who don't know what Sodastream is: SodaStream is a system where you can make your own soda at home using regular water and a CO2 cartridge. You put water in the special Sodastream bottle, ...
- 3,989
0
votes
1
answer
72
views
Increase water pressure (e.g. for watering the garden) using the principle of a hydraulic press
Does anyone know a device that incorporates this principle? Process is as follows:
You get a lot of water at low to mid pressure (let's say 1 bar)
A device D converts the work that 1 liter of water ...
- 1,785
20
votes
10
answers
4k
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Will just the increase in height of water column increase pressure or does mass play any role in it?
As we know pressure exerted by any liquid at any given point in a container can be calculated by the formula $P = \rho g h$. Product of density of fluid, acceleration due to gravity and the depth from ...
0
votes
2
answers
497
views
What will happen to balloon if it is filled with water and kept inside container containing water? Consider balloon at middle of container [closed]
Consider water-filled balloon kept initially at mid-height of container. Will it lift or sink or stay there? Will balloon shrink or stay as it is? (Assume balloon material is elastic. Pressure above ...
1
vote
1
answer
142
views
Principle behind bottle submerged in water?
Consider the following diagram.
A drink bottle is placed upside down in a bowl and a small hole is made in the cap of the drink bottle. Assuming the drink bottle is filled with water, why doesn't all ...
0
votes
1
answer
127
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Would pumping warm humid air through a pipeline up to the top of a mountain produce a lot of fresh water?
I have been doing a lot of research on the Internet lately about desalination processes and desalination plants and this led me to studying mountain weather and the orographic effect or orographic ...
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