Questions tagged [water]
Two Hydrogen atoms covalently bonded to one Oxygen atom. One of the more common compounds on the surface of the earth.
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Temperature of a resting glass of water
It’s summer and summers have become more and more hot&humid lately. This got me curious about the dew point and then wet bulb temperatures, both for scientific and (maybe, someday in the future) ...
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Albedo of water vs temperature
This question arose out of pure curiosity.
Is there a relation between the temperature of water and its albedo? Would the albedo increase if I increased temperature? Say I measure albedo by directing ...
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Why won't there be any transfer of heat energy when ice at 0°C is in contact with water at 0°C in a closed container?
In my book, Concise Physics of Selina Publications for Class IX, it's written there that "If there is no transfer of heat between the two bodies placed in contact, they are said to be at the same ...
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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 ...
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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 ...
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Energy Benefits of Using Windows Vacuums to Remove Water That Otherwise Evaporates and Absorbs Energy
I've been using a new window vac and pondering its effect on the temperature in the house - and there seems nothing written about this that I can find. Plainly when the water evaporates energy is ...
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Why rain drops are spherical while water droplets on a glass surface are flat?
Why are raindrops spherical when falling through the air, but lose their spherical shape when they are on a flat surface?
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Does Pipe Temperature Directly Correlate To Water Temperature? [closed]
I need to know if just by taking a boiler flow pipe temperature that will tell me the water temperature that is flowing through the pipe.
For example if the water from the boiler travelling through ...
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If I'm inside water, is the amount of heat energy I can receive capped because water can't go above 100°C?
I just learned about double-boiling, where instead of putting a pot directly on the flame stove (where it can get too hot), you put a big tub of water on the flame, and put the pot in the tub of water....
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Intuition about SCAN-DFT
I am currently performing molecular dynamics simulations of water/ice and would like some intuition behind some of the results I am seeing. For context, I am using the water model described in this ...
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Drying polymers (e.g. FDM 3D printing filaments)
As far as I understand, a polymer absorb some moisture and amount of (maximum) moisture that can be absorbed depends on its type (PLA ~1%, ABS? ~10%). Both simple commercial filament dryers and drying ...
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Velocity Needed For Water To Overcome Adhesion Force To A Rounded Steel Inclined Plane
Context: I work at a fast food restaurant with a 3-module sink. The sides are slightly angled down to allow the water to trickle down into the compartments. I found that water clings to the side of ...
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Earthen Pots made in summers vs winters
I've heard my parents saying that the water in earthen pots that are made in winters cools more than a pots that are made in summers. Is this true according to physics? I understand the process of ...
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Rotating a Pot of Boiling Water on a Stove
I have just boiled a half dozen eggs and wanted to ask about a phenomenon I have witnessed for years but have bottled up inside for so long. Why, when the water is near boiling and nice and hot, does ...
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How do bubbles on water surface merge?
When we open a tap over a water surface, we get to see a lot of bubbles ("half merged in the water") coming out on the surface.
Now what I saw was that two such nearby half bubbles merge to ...
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