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Why does sea water freeze at a different temperature than fresh water?
Wiki User
∙ 6y ago
salt water freezes slower than fresh water because the salt lowers the freezing point from 0 degress celsius to about -21 degress celsius. some other sources howerver say that the freezing point of salt water is -6 degrees celsius
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Wiki User
∙ 13y ago
Wiki User
∙ 15y agoSalt lowers the freezing point. That's why they spread salt on snow covered roads, to melt the snow/ice. Saltwater has a much lower freezing point (the freezing point is the temperature where something freezes) than freshwater does. And the more salt there is in it, the lower the freezing point gets. So in order to know the exact temperature that it's going to freeze, you have to know just how salty it is. For saltwater that's as saturated as it can possibly get (i.e. there's no way to dissolve any more salt in it no matter how hard you tried), the freezing point is -21.1 degrees Celsius. This is when the saltwater is 23.3% salt (by weight).
Wiki User
∙ 12y agoBecause it contains sodium chloride (common salt). Salt dissolves in water, but does not easily attach to ice. Since some of the water molecules are replaced by salt, the ice grabs less water molecules. This upsets the rate of freezing and melting water molecules. Melting is happening faster than freezing.
Wiki User
∙ 13y agoColligative properties. Addition of a solute depresses freezing point.
Wiki User
∙ 11y agobecause salt takes longer to freeze than anything in fresh water
Wiki User
∙ 6y agoPure water freezes at 0 degrees Celsius.
Sea water is not pure water, it has various salts dissolved in it so it has a different freezing point
Wiki User
∙ 6y agoYes, the freezing point is decreased.
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Which type of water freezes first fresh or salt water?
Fresh water freezes at a higher temperature than Salt water. So Fresh Water doesn't have to lose as much heat in a given amount of time in order to Freeze.
Which water will freeze faster salt water or fresh water?
Fresh water will freeze faster than salt water, and at a higher temperature too. Why?Salt water is called salt water due to its containing dissolved salts -- usually Sodium Chloride (NaCl), but any other salts will do. When water freezes, the molecules link up into a crystal structure (ice). The atoms of any dissolved salts will interfere with the formation of the crystal, meaning more energy will have to be taken out (the temperature will have to drop lower) before salt water freezes.
How long does it take 1 gallon of water to freeze at 32 degrees?
There is no standard length of time that it takes for a gallon of water to freeze. The amount of time it takes for a gallon of water to freeze can vary depending upon many different things such as temperature.
How long will it take to freeze water with orange juice IN IT?
it depends on what's the temperature you freeze it in. if you freeze it in a freezer with the temperature at 5 degrees it might take about 45 minutes to an hour.
How does fresh water freezes faster than salt water?
When water has a substance dissolved in it, it freezes at a lower temperature. Salt water has salt dissolved in the water, so it freezes at a lower temperature than fresh water.
What are the constants between salt water and fresh water in regards to freezing?
The difference is that fresh water will freeze at 0.c and salt will freeze to a lower temperature due to the presence of impurities (salt).
Why is the temperature needed to freeze ocean water lower than the temperature to freeze the surface of a fresh water lake?
The ocean is larger than a lake. Therefore, being larger it can absorb more heat. That is why a lower temperature is needed to freeze it.
How long does it take for fresh water to freeze?
Many variables affect the freezing of " fresh water ". It depends on the surface temperature of " fresh water ", whether still or moving, and the rate of the air temperature dropping below freezing.
What difference will be observed if ureka can is filledwith salt water instead of fresh water.?
It will freeze at a lower temperature.
Why is the temperature needed to freeze ocean water lower than the temperature needed to freeze a surface of a fresh water lake?
The ocean is larger than a lake. Therefore, being larger it can absorb more heat. That is why a lower temperature is needed to freeze it.
Which type of water freezes first fresh or salt water?
Fresh water freezes at a higher temperature than Salt water. So Fresh Water doesn't have to lose as much heat in a given amount of time in order to Freeze.
Does tea or juice or fresh water or salt water freeze faster?
Fresh water is probably the likely candidate. If you add salt to a liquid, its freezing point lowers. Meaning, it would need a lower temperature for it to freeze.
Does water that is denser than normal like salt water freeze faster?
On the contrary, it takes longer for salt water to freeze - it freezes at a lower temperature than fresh water does.
Why is freeze thaw?
Fresh water (for instance) will freeze and turn to ice when the temperature drops below freezing point. The ice will thaw (melt back into water) when the temperature rises above freezing point.
Do different amounts of water freeze at the same temperature?
Yes, but the larger the amount of water, the longer it will take for it to freeze.
Why is the temperature needed to freeze ocean water lower than the temperature needed to freeze the surface of a fresh lake?
The ocean is larger than a lake. Therefore, being larger it can absorb more heat. That is why a lower temperature is needed to freeze it.
Do sea water freeze before fresh water?
No, sea water freezes at a lower temperature than fresh water, because of the minerals -- mostly salt -- contained in sea water. Sea water may not freeze until it reaches 27 or 28 degrees F. Fresh water freezes at 32 degrees F.
