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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Why does the freezing point of water regress at select pressures before increasing again at even higher pressures?
This phase diagram of water shows how the phase of water is determined by the pressure and temperature.
I find it easy enough to understand; as the pressure increases, the boiling point of water also ...
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Capillary action strength questions [closed]
I've been studying capillary action, and I've drawn some conclusions about the behavior which surprised me, and I want to know if I'm understanding it correctly.
According to Jurin's law, the height ...
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Conservation of water?
I know that water can exist in various states (liquid, solid, ...) and can be in various places (clouds, oceans, ground, ...). What I want to know is whether or not the total number of water ...
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Why do water surfaces have persistent "average wavelength" patches?
Have you ever stood above a river or lake and noticed that the surface has visible "patches"? It looks like the surface has different average wavelengths in some areas, leading to the light ...
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Hysteresis in volume of liquids and solids vs temperature
We were asked as a lab experiment to measure the volume occupied by water and ethyleneglicol as a function of its temperature by having a flask inside a body of water at the desired temperature. Then, ...
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Do high powered lasers refract differently than other light?
So I have a question: I am told that there are naval lasers that target over 100's of miles ship-to-ship (not ship to air). Someone asserted that powerful lasers would refract differently than light. ...
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Why does water warm gradually when a faucet is opened?
When you turn on a hot water tap after some idle period, you first get the cooler water that's been in the pipe, then gradually it warms up to the tank temperature.
I've wondered why the warmup is ...
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Would seawater flow be affected by a magnet?
Let's suppose that there are two streams of sea water, flowing on a flat inclined surface. Both of the streams are distant, independent of each other and parallel to each other.
Now lets image I put a ...
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Why does curvature reduce the inward attractive force of molecules?
This question concerns the first 2 paragraphs of this text.
I am struggling to visualize why molecules on the flat surface experience more net inward force than those on a curved surface. If we have 2 ...
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Converting starting wave to known max wave height
in our university project, we are developing a tsunami simulation using the Shallow Water Equations. For our project, we have decided to allow users to enter an epicentre and the magnitude of an ...
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Measuring Temperature of Water-filled Methacrylate Capsule: Laser Thermometer Accuracy and Penetration Depth Inquiry
Imagine that I have a methacrylate capsule filled with water (8cm in diameter and 30cm in length). If I wanted to measure the temperature with a laser thermometer pointing at the capsule, what ...
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Effect of impurities on boiling and freezing points
When impurities like salt is added to water, the boiling point of water increases because of what I think is vapour pressure, though I know very little about that too. However, with the same analogy, ...
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What's the fastest speed water from a glacial dam burst could achieve? [duplicate]
I've been watching a lot of Graham Hancock videos of late, thrusting myself deep into the rabbit hole of pseudoarchaeology/alternative archaeology, and I don't really know enough to assess the ...
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Can water at absolute zero still be liquid?
We see this interesting phenomenon with water bottles in cold chillers left undisturbed for a long time; the water within remains a liquid, but a small kinetic shock, such as a tap, shake or pour, ...
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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 ...
