# Tag Info

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Of course. On a hot, humid day, if you have a glass of ice water you'll get water droplets condensing onto the glass. The same happens onto the surface of the water, you just can't tell the difference between newly condensed water and the pre-existing water.

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No, they will cool at different rates Newton's law of cooling states that $$\frac{dQ}{dt} \propto T-T_{env}$$ where $T$ is the temperature of the water and $T_{env}$ is the temperature of the environment. As you can see, the larger the temperature difference, the more quickly the water will lose heat. We can assume that the specific heat of water will ...

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It's simply because water is much flatter and smoother than most surfaces. You see reflections in water but not, say, sand, for the same reason you see your reflection in a polished piece of steel but not a rough-sanded piece of steel. All materials reflect light to some extent, but a rough surface scatters the reflected rays in all directions, so ...

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The pressure is caused by the weight of the water above. The compressibility (or lack thereof) of water is irrelevant to the pressure. Try this experiment. Put your hand on the table. Now put a brick on your hand and feel the pressure. Then add a second, third, etc brick. You will feel the pressure increase, but you will not see the bricks being ...

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Pure water is not flammable. It can be added to other materials (e.g. cesium, sodium, etc.) to produce flame, however. In the comments you seem to reject that option because it is not "pure water" but water reacting with something. I'd like to point out that all flammability results from reactions. Pure oxygen is not flammable either, for example, it has to ...

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What is the possibility water being the fuel to fire. "Pure water" Especially your emphatic addition of "Pure water" allows to answer this question in the narrow sense of the question as: 'No'. In order for a substance to be the fuel to a fire it has to contain something that is reducible, i.e. capable of lowering its Oxidation Number. Such a ...

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Yes, if a water fire extinguisher is used inappropriately, on (say) something like a Magnesium fire. The Magnesium extracts the Oxygen from the water and the Hydrogen then burns. This is in addition to what is effectively a steam explosion from the heat alone spreading the burning metal. Such a fire is a danger when machining Magnesium or similar metals and ...

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A perfect example of the difference between Laminar and Turbulence. Even the difference in optical appearance is present. It should be noted that the excavators shovel has a radius, which means that the water is released with a minimal disturbance. It has also most propably been filled with a small hose, so it's undisturbed. In hydrostatic equilibrium. See ...

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Water is polar and is not one line or round. It takes energy to break the polar bonds. With the V shape it takes more energy to spin it. Many degrees of freedom for water to vibrate and rotate. I would not call water an outlier. Alcohol is close to water.

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The quantity you are asking about is the viscosity of a dispersion, and Googling will find you many articles describing how to calculate this. For dilute suspensions of spheres the equation for the viscosity was derived by Albert Einstein (yes, the Albert Einstein!): $$\mu \approx \mu_0 (1 + 2.5\phi)$$ where $\mu_0$ is the viscosity of water and $\phi$ ...

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