My fiance and I did an experiment with hot and cold water to see which one would make ice cubes faster. Honestly they froze at about the same time. He was taught that because its hot the molecules come together faster in the cold air, but during the test it was equal. As for the salt water I would think that would come in last.
Cold water, being the closest to freezing point, will obviously freeze the fastest. Hot water will freeze the second fastest, and salt water barely ever freezes, except in very cold conditions.
sea water doesnt freeze faster than fresh water, fresh water freezes faster than sea water as it has a lower freezing point than sea water has as sea water contains salt which makes the boiling/freezing points increase therefore making the sea water freeze at a lower temperature.
Salt lowers the freezing point of water. When salt is added to water, it disrupts the formation of ice crystals, making it harder for water to freeze. This is why salt is often used to de-ice roads and sidewalks in cold weather.
Theoretically H20 could go to almost absolute zero.Technically, pure water can only go to zero degrees celcius before it starts to freeze and eventually becomes ice rather than water. The addition of salt (or any other solute) to water can depress the freezing point a few degrees (depending how much salt is added), but still water will freeze well above absolute zero
Yes, salt water has a greater density than fresh water. The ocean is about 2.5% denser than fresh water. This causes greater buoyancy of objects and a swimmer can notice this easily. Usually, when any solute is added to a solvent, the resultant solution increases in density, but there are exceptions to this rule. In the case of salt water, two things combine to cause the increase in density. First, a cubic centimeter of salt is about twice the mass of a cubic centimeter of water. Second, if you add a cubic centimeter of salt to a liter of water, the volume will increase by only about half a cubic centimeter. (This is because the dissolved sodium (Na+) and Chlorine (Cl-) atoms strongly interact with the polar water molecules causing rearrangement of water molecules near the ions which results in the nearby water atoms occupying a smaller volume.) If one is more precise about density, one needs to specify temperature. Cold salt water has a greater density than warm salt water; similarly for fresh water. Salt affects the temperature of water freezing and the density of water is peculiar near freezing anyway, so one needs to be careful when making general statements about water density and salt and temperature when the system is within a few degrees of freezing.
the salt prevents the water from getting cold
First freezes the pure water !
the reason salt water freezes is because of the amount of salt in the water
If the salt is still in the water it will freeze inside the water so its technically frozen
Any water that gets cold enough to freeze. You can freeze fresh water, brackish water, salt water, or polluted water.
Cold water, being the closest to freezing point, will obviously freeze the fastest. Hot water will freeze the second fastest, and salt water barely ever freezes, except in very cold conditions.
I think it is fresh water freezes faster because the salt melts ice.
Rivers and streams are composed of fresh water which freezes at 32o F or 0o C, so if the water gets colder than that, it will freeze. Salt water freezes at a lower temperature (which is why salt is used to melt ice).
One alternate wording is At waters freezing temperaturethere are 3 test tubes, cold water is in test tube A, hot water is in test tube B, and salt water is in test tube C. Which test tube at (32 degrees) which will freeze the fastest? i hope i helped!
Fresh water freezes at 32°f (0°c) at sea level. Sea water freezes at 28.4°f (-2°c) at sea level. Salt water depends on the concentration of salt. At maximum saturation salt water (23.3% by weight) freezes at -5.98°f (-21.1°c).
Salt Water
Salt water freezes at a lower temperature than fresh water, so it typically takes longer for salt water to freeze compared to fresh water. This is because the presence of salt lowers the freezing point of water.