The difference between clear ice made by freezing previously-heated water and cloudy ice made from ordinary cold tap water is the presence of trapped air bubbles in the cloudy ice. The trapped air comes from gases that were dissolved in the cold water, but which come out of solution during freezing. When water is boiled, or raised in temperature, the solubility of gas is reduced and it comes out of solution, so that when that previously heated water is frozen there are no bubbles formed and the ice is clear.
cold water
why would you even ask this?? obvsly you should use cold water :|
gas is more soluble in cold water. In hot water, the molecules are farther apart, leaving room for gas to escape. That's why it's LESS soluble, and why hot water makes clearer ice cubes. Cold water molecules are close together, trapping in the gas and dissolving it. We keep pop in the freezer so the carbonation will last longer.
*melt because of heat *melt better when run under cold water *apparently salt melts it better google some more
Answering the question and the question in the details below:Ice cubes stick together because the surface of ice is liquid-like and when the ice cubes touch, the surfaces freeze together. For more background, please view the answer to "Why is ice slippery?"The following answer gives some scientific details pertaining to ice:Water freezes at 0 degrees celsius, but the ice that comes out of your freezer is much colder.From the moment you put ice into water, the water gets colder and the ice gets warmer until there is one uniform temperature and all ice has turned to water. You can imagine how if the ice were cold enough, it could freeze all the water.Two cubes of ice at say -10C would easily freeze a thin layer of cold water surrounding them before they get down to the temperature at which they begin to melt.BUT I have noticed that often cubes that are half-melted will still stick together. How can this be? If it has been shrinking, the outer layer should be in the process of melting and therefore not cold enough to freeze its surroundings. I do not know the explanation for this. Perhaps I wasn't watching closely enough. Maybe they froze together when they were larger and for some reason the connections don't melt as fast as the other parts of the ice. More experimentation needed.
When all the ice melts (it will take a while with the water at 0C), the water level in the glass will not be in any danger of overflowing the container because water is one of those rare liquids that expands when it freezes. (This is why a closed glass container of water put into a freezer will break.) This means that it contracts as it melts.The specific water level of the glass will depend on how much ice was floating above the water level, but it won't be in any danger of overflowing. As a matter of fact, the water level will actually be lower than the rim of the glass.
If you have the same volume of both then there are in cold water more molecules.
Cold water is better for making ice cubes because it freezes faster than hot water due to its lower initial temperature. Cold water also tends to make clearer ice cubes compared to hot water, which may have impurities that cause cloudiness.
Ice cubes don't faster in cold water because the temparature of cold water is low, ice cubes melt faster in high temparature.
put them in cold water
Hot water
Reusable ice cubes are typically filled with distilled water or a non-toxic gel (such as polyethylene glycol) that can freeze and keep drinks cold without diluting them as traditional ice cubes would. Some reusable ice cubes are also filled with a non-toxic gel that can retain cold temperatures longer than water.
It feels like ice , and glass like . · The glass filled with cold water and ice cubes felt cold on the outside as well.
Ice cubes melt faster in hot water than in cold water because hot water has a higher temperature, which transfers more heat energy to the ice cubes, causing them to melt at a faster rate. The greater temperature difference between the ice cubes and hot water results in a faster transfer of thermal energy, melting the ice cubes more quickly.
Because of condensation formed by the cold of the ice and metal meeting with the warmth of the water.
They will dissolve much quicker in warm or hot water than in cold water.
No, it won't. It takes more energy for the freezer to reduce the temperature of the hot water to the freezing point - than it does with cold water.
The ice cubes appear clearer after freezing since warm water contains fewer dissolved gases than cool water. Some people do it because they think it freezes faster. This is only true in certain cases, though; specifically, if the air in the freezer is saturated with water vapor (which is fairly likely) warm water will freeze more slowly than cool water.
Yes, when ice cubes are placed in water, they will lower the temperature of the water, causing it to freeze if the temperature drops below 32 degrees Fahrenheit (0 degrees Celsius). The ice cubes transfer their cold temperature to the water, leading to the formation of ice.