at what altitude does water freeze
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Freezing level Freezing level. The freezing level, or 0 °C (zero-degree) isotherm, represents the altitude in which the temperature is at 0 °C (the freezing point of water) in a free atmosphere (i.e. allowing reflection of the sun by snow, etc.). Any given measure is valid for only a short period of time, often less than a day.
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At what temperature does water freeze? Pressure has an effect on the freezing point (or melting point) of water, though it isn't as substantial as the effect of pressure on boiling point. We could say that these values are at standard pressure, but realistically there is no noticeable difference of water's freezing point on various altitudes on earth.
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- Marilyn: Will water freeze at a different temperature in a higher altitude? Marilyn responds: In an ordinary container (exposed to atmospheric pressure), yes. The freezing point will increase with altitude (and corresponding decrease in atmospheric pressure), but the difference is very slight. Mountain-climbers would never notice.
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- The freezing point of water is 0 degrees Celcius (32 degrees Fahrenheit). 21 people found this useful. Edit. Share to: 1  Hot Careers in the U.S. Weather Bureau Most children dream of being firefighters or ballerinas when they are young.
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What substances other than water melt/freeze at 0 degree celsius? The temperature scale was set for water and only water freezes at zero at one atmosphere pressure. One can make a low molecular weight polymer like PE, that is tuned by MW to freeze at zero, but it would be approximate.
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- Water usually boils at 212F or 100C at sea level. As you go higher up in the atmosphere (higher altitude), the amount of atmosphere pushing down on you decreases, hence the pressure decreases.t doesn't  Actually, at higher elevations, water boils sooner rather than  later.    At higher altitudes, air pressure is lower. The reduced air  pressure lowers th … e temperature at which water boils in an open  container.
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Water (molecule) As the surface of salt water begins to freeze (at −1.9 °C for normal salinity seawater, 3.5%) the ice that forms is essentially salt free with a density approximately equal to that of freshwater ice.
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Why do they use salt to melt ice on the road in the winter? Salt lowers the freezing/melting point of water, so in both cases the idea is to take advantage of the lower melting point. Ice forms when the­ temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius). When you add salt, that temperature drops: A 10-percent salt solution freezes at 20 F (-6 C), and a 20-percent solution freezes at 2 F (-16 C). On a roadway, this means that if you sprinkle salt on the ice, you can melt it. The salt dissolves into the liquid water in the ice and lowers its freezing point.
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What is the freezing point of water, melting point of ice, boiling point of water? Here's the answer to this common question. Answer: Short Answer: The boiling point of water is 100°C or 212° F at 1 atmosphere of pressure (sea level). Better Answer: The boiling point of water depends on the atmospheric pressure, which changes according to elevation.
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- Zero degrees Celsius is the freezing point for water, but the fact is that water can remain a stable liquid at zero degrees C. Zero degrees C i … s also the melting point of ice, but you can have ice that remains stable at zero degrees C as well. The difference is the 'heat of fusion'.
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What temperature does salt water freeze at? So ocean water freezes at about -1.91 degrees C. The results of your experiment are strange. Usually, fresh water freezes at 0 C. Did you make sure that your thermometer was completely surrounded by the ice? Don't freeze the thermometer into the
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- As ice begins to freeze out of the salt water, the fraction of water in the solution becomes lower and the freezing point drops further. This does not continue indefinitely, because eventually the solution will become saturated with salt. The lowest temperature possible for liquid salt solution is -21.1°C.
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- A solution of 76.7% water and 23.3% salt will freeze at -21.1 degrees Celsius, which is why adding salt to ice will melt it when the temperature is below freezing. The boiling point increases by the same principle of disturbing the homogeneous fluid.
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At what temperature does water freeze? The freezing/melting point of pure water is 32° Fahrenheit (equalto 0° C). However at exactly 32 degrees (and a normal atmospheric pressure)water and ice can exist simu…ltaneously with no preference foreither state. Slightly below this temperature and water freezes,slightly above and ice melts.
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- Pure water freezes at 32 °F (0 °C). If you can make a solution of ice and water right at that point, you can check if your thermometer reads right at freezing. To make a 32 °F (0 °C) solution, do the following: Take a clean styrofoam cup and fill it with crushed ice, heaped on the top.
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Cold, colder and coldest ice A glass of water left in the freezer eventually becomes a glass of ice. Most people know what happens at 0º Celsius (or 32 º Fahrenheit): Water freezes. When the temperature outside is below freezing, for example, a rain storm may become a blizzard of snow. A glass of water left in the freezer eventually becomes a glass of ice. The freezing point of water may seem like a simple fact, but the story of how water freezes is a little more complicated. In water at the freezing temperature, ice crystals usually form around a dust particle in the water. Without dust particles, the temperature can get even lower before the water turns to ice. In the laboratory, for example, researchers have shown that it’s possible to cool water down to -40º C — without producing a single ice cube.
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Q & A: Water at 4 deg C Rohan- That’s a very nice question. I assume you are referring to liquid water, not ice, since 4°C is about the temperature (T) at which liquid water has a minimum volume, at atmospheric pressure. The expansion of water at lower T results from the water molecules arranging themselves to minimize the energy of their interactions.
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Explanation of the Density Anomalies of Water (D1-D22) When water freezes at 0 °C its volume increases by about 9% under atmospheric pressure; therefore ice floats on water (see above). If the melting point is lowered by increased pressure, the increase in volume on freezing is even greater (for example, 16.8% at -20 °C [561]).
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Can the ocean freeze? Ocean water freezes just like freshwater, but at lower temperatures. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it. When seawater freezes, however, the ice contains very little salt because only the water part freezes. It can be melted down to use as drinking water.
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- What's Happening: Most people believe water always freezes at exactly 32°F or 0°C. While it is true that pure water ice always begins to melt at 0°C, liquid water-even pure water-does not necessarily freeze at this temperature, and can remain a liquid at much colder temperatures (see the link below).
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Q: So if the water starts to freeze at, for example, -10°C, more will freeze as it's cooled further until finally the last bit will freeze at -21.1°C. Thus for un-saturated saltwater the freezing happens over a range of temperatures, not all at one exact temperature, unlike pure water.
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- Things to consider: The freezer. 1  One of the first items we must point out is that 32 degrees does not mean that something is frozen or will freeze.  The next item to point out is that saltwater freezes at a different temperature based on its salinity (aka sodium) level – most like NOAA simply state 28.4º.
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- At sea level, water boils at 212° F (100° C). Elevation affects the boiling point of water. With each 500 ft. increase in altitude, the boiling point of water is lower just a tad under 1° F.
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What is the freezing point of water? What is the freezing point of water? « Reply #1 on: 20/11/2011 14:19:04 ». Pure water has a freezing point of 32oF, 0oC at sea level under normal pressure. Impurities in the water (such as sea salt), pressure and altitude will raise or lower the freezing point. Of course, altitude only makes a difference because at higher altitudes air pressure is less...