All Questions
Tagged with water temperature
210
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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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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 ...
1
vote
1
answer
47
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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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6
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2
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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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3
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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 long for boiling water to cool down in a cooler?
I have no knowledge in physics but I drink green tea, and it requires water at 70 degree (so does the package say). My boiler can only heat to 100 degrees (not below), so I would like to know how long ...
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2
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2
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75
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For a liquid at boiling point, how can it require a set amount of heat (latent heat) to vaporize
I've always had a hard time wrapping my head around the 2 below statements being true for vaporizing a liquid into a gas:
When a liquid reaches its boiling point the temperature stops rising (and any ...
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317
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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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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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12
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9
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Could one perform a test to determine whether water was warmed by a microwave rather than over a flame?
If I warmed two cups of water from 20 °C to 90 °C, one in a microwave and one over a flame. Is there a test that could be performed to determine how each cup was warmed? Are there residual effects ...
- 161
3
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2
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294
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Enthalpy of formation function of temperature
Why is the enthalpy of formation a function of the temperature?
We can see in the dedicated tables (such as JANAF),
that the enthalpy of formation changes with temperature.
Doesn't the enthalpy of ...
- 31
1
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answer
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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 ...
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Melting point of water [duplicate]
Wikipedia says about melting point that:
The melting point of ice at 1 atmosphere of pressure is very close to 0 °C (32 °F; 273 K); this is also known as the ice point.
But why it is very close and ...
- 104
1
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1
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751
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What effect does salt have on the boiling speed of water?
My question is the following:
I have two pots. Pot A and pot B. I fill both of them with 1l (litre) of water. Now I add a table spoon of salt into pot A. Which water is going to start boiling first?
I ...
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2
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2
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How does water regulate temperature? [closed]
I've always realised that areas in close proximity to the ocean experience moderate temperature changes. I don't understand how water moderates this temperature. I suspect that it has something to do ...
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