Hot water doesn't freeze faster
According to www.sciensational.com, hot water freezes faster than cold water.But I do not have any idea about your question.
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllA good way to make a hypothesis is to use an "if... then..." statement. If you think it will melt faster in water you could say: "If the ice cube in is water, then it will melt faster than in air" or something along the lines of that.
Warm water will not freeze faster because it will first need to cool and then freeze. If you take a two samples of water and boil sample A, let it cool so that both sample A and B are at the same temperature and then put them in the freezer, the boiled water (sample A) will freeze faster.
Also, if you have tap water and purified water, the purified will freeze faster.
water melts faster than it freezes
This is true because the thermal conductivity of ice is much larger than the thermal conductivity of liquid water.
Yes it melts differently in every kind of liquid
Water because salt gets in the way of freezing instead of freezing something like water.
Yes, especially at temperatures below the freezing point :-)
Do the experiment to find out.
i need one too
It has been proven that hot water freezes faster than cold 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.
Absolutely. Water must achieve a temperature below 32°F before it can freeze. The closer the water is to room temperature, the quicker it will freeze. There is a phenomenon in which warm water freezes and cold water not: In some regions(e.g. Siberia) it is possoble to pour boiling hot water to the ground and it will freeze even before it hits the bottom. This is possible as hot water's molecules are moving more heavily than those of cold water. Therefore the surface of the water is bigger and warmth can leave the molecules faster. I remember a report of a experiment at one of the university's found hot water froze faster by a inute.
Yes ,the higher the temperature gradient between the hot water and room temperature, the faster it cools. However, that does not mean that hot water will freeze faster than cold water (a common urban legend). If you have water at 50°C in a room at 20°C, it will cool from 50° to 40° faster than it will cool from 40° to 30°.
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 air and hot water makes water freeze faster simply because the hot water is steaming and so the result is that there is less water to freeze. hot water = steam = less water less water = faster freeze cold air = faster freeze
cold water
Cold water freezes faster because hot water has to cool down to the freezing temperature before it can freeze.
It has been proven that hot water freezes faster than cold water.
yes
Kinetic energy
Hot and cold water and a freezer and a timer or stopwatch
warm water because the cold water will freeze the cell wall.
No. It takes longer to freeze because cold water is closer to it's freezing point.
normal water with salt
Cold water will freeze faster. Because the freezing point of water is 0oC, water that is closer to that point will freeze faster then hot water. This is because it will require less time to lower the temperature to the freezing point.
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.